diff --git a/COPYING b/COPYING
index caeca07..88798ab 120000
--- a/COPYING
+++ b/COPYING
@@ -1 +1 @@
-/usr/share/automake-1.14/COPYING
\ No newline at end of file
+/usr/share/automake-1.15/COPYING
\ No newline at end of file
diff --git a/ChangeLog b/ChangeLog
index a88e9e3..d01507a 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,51 @@
+2015-12-02 15:58  marc
+
+	* build-in-docker.conf, build-in-docker.sh,
+	  resolve-debbuilddeps.sh: enhanced build in docker
+
+2015-12-02 07:17  marc
+
+	* build-in-docker.conf: build requires universe for npm
+
+2015-12-01 14:50  marc
+
+	* build-in-docker.conf, build-in-docker.sh, debian/control.in:
+	  improved dependencies for more ubuntu support
+
+2015-12-01 13:10  marc
+
+	* build-in-docker.conf: build everything in docker now, 2nd try
+
+2015-12-01 12:17  marc
+
+	* bootstrap.sh, build-in-docker.conf, build-in-docker.sh,
+	  configure.ac, makefile.am: build everithing in docker now
+
+2015-11-25 15:25  marc
+
+	* build-in-docker.sh: allow add repositories (for cordova-cli)
+
+2015-11-25 12:45  marc
+
+	* configure.ac, debian/control.in: install cordova from ubuntu ppa
+
+2015-11-25 10:05  marc
+
+	* configure.ac, cordova/makefile.am, debian/control.in: fixes for
+	  cordova
+
+2015-11-25 08:57  marc
+
+	* ax_init_standard_project.m4, bootstrap.sh, configure.ac,
+	  debian/control.in, sql-to-dot.sed: check for android and cordova
+	  separately; depend on npm and nodejs for cordova
+
+2015-11-20 14:05  marc
+
+	* ChangeLog, cordova/config.xml.in, cordova/makefile.am,
+	  html/safechat.js, safechat.desktop.in: try to allow background
+	  process
+
 2015-11-09 22:34  marc
 
 	* html/documentation.dox, html/makefile.am: added missing doc
diff --git a/INSTALL b/INSTALL
index f812f5a..ddcdb76 120000
--- a/INSTALL
+++ b/INSTALL
@@ -1 +1 @@
-/usr/share/automake-1.14/INSTALL
\ No newline at end of file
+/usr/share/automake-1.15/INSTALL
\ No newline at end of file
diff --git a/build-in-docker.conf b/build-in-docker.conf
index 6fb02a1..3310463 100644
--- a/build-in-docker.conf
+++ b/build-in-docker.conf
@@ -1,11 +1,22 @@
-packages+=("wheezy:::curl:::npm")
-packages+=("nodejs")
-repos+=("Ubuntu:::universe")
-repos+=("wheezy:::'deb http://ftp.is.debian.org/debian wheezy-backports main'")
-commands+=("wheezy:::update-alternatives --install /usr/bin/node nodejs /usr/bin/nodejs 100")
-commands+=("wheezy:::curl https://www.npmjs.com/install.sh | sh")
-commands+=("npm install -g cordova")
+# if you have android, we need cordova plus more dependencies
+# so we can build an android app
 if test -n "${ANDROID_HOME}"; then
-   envs+=("-e ANDROID_HOME=${ANDROID_HOME}")
-   dirs+=("-v ${ANDROID_HOME}:${ANDROID_HOME}:ro")
+    # all this is needed for android through cordova (phonegap) only
+    packages+=("wheezy:::curl:::npm")
+    packages+=("git nodejs default-jdk libc6-i386 lib32stdc++6 lib32gcc1 lib32ncurses5 lib32z1")
+    repos+=("Ubuntu-precise:::'deb http://archive.ubuntu.com precise universe'")
+    repos+=("Debian|Ubuntu-precise::::::universe")
+    repos+=("wheezy:::'deb http://ftp.is.debian.org/debian wheezy-backports main'")
+    commands+=("update-alternatives --install /usr/bin/node nodejs /usr/bin/nodejs 100")
+    commands+=("wheezy:::curl https://www.npmjs.com/install.sh | sh")
+    commands+=("npm install -g cordova")
+    commands+=("chown $(id -u) ${HOME}")
+    commands+=("chown -R $(id -u) ${HOME}/.npm")
+    commands+=("useradd -d ${HOME} -u $(id -u) $(id -un)")
+    envs+=("-e ANDROID_HOME=${ANDROID_HOME}")
+    envs+=("-e HOME=${HOME}")
+    envs+=("-e TERM=xterm")
+    dirs+=("-v ${ANDROID_HOME}:${ANDROID_HOME}:ro")
+    dirs+=("-v ${HOME}/.gnupg:${HOME}/.gnupg:ro")
+    dirs+=("-v ${HOME}/.android:${HOME}/.android:ro")
 fi
diff --git a/build-in-docker.sh b/build-in-docker.sh
index b6a1560..ac091ae 100755
--- a/build-in-docker.sh
+++ b/build-in-docker.sh
@@ -1,4 +1,5 @@
 #! /bin/bash -e
+set -o errtrace
 
 # build and test everything in a fresh docker installation
 img="ubuntu:latest"
@@ -39,21 +40,21 @@ while test $# -gt 0; do
             echo "    <os>:::<A>"
             echo "  Read as: On linux type <os> use <A> else use <B>"
             echo "  That means: If the distributer ID or codename in lsb_release"
-            echo "  matches <os>, then <A> is replaced, else <B> is replaced."
+            echo "  matches regular expression <os>, then <A> is replaced, else <B> is replaced."
             echo "  The three colons are for splitting <os> from <A> and <B> part."
             echo "  E.g.: Install package curl on wheezy and npm on olter systems:"
-            echo "    $0 -p wheezy:::curl:::npm"
+            echo "    $0 -p Debian|precise:::curl:::npm"
             echo
             echo "EXAMPLE:"
             echo
             echo "$0 -i mwaeckerlin/ubuntu:trusty-i386 \\"
-            echo "                    -t deb \\"
-            echo "                    -e ANDROID_HOME=/opt/local/android \\"
-            echo "                    -d /opt/local/android \\"
-            echo "                    -r universe \\"
-            echo "                    -r https://dev.marc.waeckerlin.org/repository \\"
-            echo "                    -k https://dev.marc.waeckerlin.org/repository/PublicKey \\"
-            echo "                    -p mrw-c++"
+            echo "                     -t deb \\"
+            echo "                     -e ANDROID_HOME=/opt/local/android \\"
+            echo "                     -d /opt/local/android \\"
+            echo "                     -r universe \\"
+            echo "                     -r https://dev.marc.waeckerlin.org/repository \\"
+            echo "                     -k https://dev.marc.waeckerlin.org/repository/PublicKey \\"
+            echo "                     -p mrw-c++"
             echo
             exit 0
             ;;
@@ -93,6 +94,38 @@ while test $# -gt 0; do
     shift
 done
 
+function traperror() {
+    set +x
+    local DOCKER_ID="$1"
+    local err=($2) # error status
+    local line="$3" # LINENO
+    local linecallfunc="$4" 
+    local command="$5"
+    local funcstack="$6"
+    for e in ${err[@]}; do
+        if test -n "$e" -a "$e" != "0"; then
+            echo "<---"
+            echo "ERROR: line $line - command '$command' exited with status: $e (${err[@]})"
+            if [ "${funcstack}" != "main" -o "$linecallfunc" != "0" ]; then
+                echo -n "   ... Error at ${funcstack} "
+                if [ "$linecallfunc" != "" ]; then
+                    echo -n "called at line $linecallfunc"
+                fi
+                echo
+            fi
+            echo "**** Entering docker container ${DOCKER_ID}, exit with Ctrl-D"
+            echo -n "   ... cleanup docker: "
+            docker rm -f "${DOCKER_ID}"
+            echo "returning status: $e"
+            echo "--->"
+            exit $e
+        fi
+    done
+    echo -n "   SUCCESS ... cleanup docker: "
+    docker rm -f "${DOCKER_ID}"
+    exit 0
+}
+
 function ifthenelse() {
     arg="$1"
     shift
@@ -103,24 +136,29 @@ function ifthenelse() {
         os="${arg%%:::*}"
         thenpart="${arg#*:::}"
         if test "${thenpart/:::/}" = "${thenpart}"; then
-            docker exec ${DOCKER_ID} bash -c 'os="'$os'"; if test "${os//$(lsb_release -is)/}${os//$(lsb_release -cs)/}" != "${os}${os}"; then '"${cmd//ARG/${thenpart}}"'; fi'
+            docker exec ${DOCKER_ID} bash -c 'os="'$os'"; if [[ "$(lsb_release -is)-$(lsb_release -cs)" =~ ${os} ]]; then '"${cmd//ARG/${thenpart}}"'; fi'
         else
             elsepart="${thenpart##*:::}"
             thenpart="${thenpart%:::*}"
-            docker exec ${DOCKER_ID} bash -c 'os="'$os'"; if test "${os//$(lsb_release -is)/}${os//$(lsb_release -cs)/}" != "${os}${os}"; then '"${cmd//ARG/${thenpart}}"'; else '"${cmd//ARG/${elsepart}}"'; fi'
+            if test -n "${thenpart}"; then
+                docker exec ${DOCKER_ID} bash -c 'os="'$os'"; if [[ "$(lsb_release -is)-$(lsb_release -cs)" =~ ${os} ]]; then '"${cmd//ARG/${thenpart}}"'; else '"${cmd//ARG/${elsepart}}"'; fi'
+            else
+                docker exec ${DOCKER_ID} bash -c 'os="'$os'"; if [[ "$(lsb_release -is)-$(lsb_release -cs)" =~ ${os} ]]; then true; else '"${cmd//ARG/${elsepart}}"'; fi'
+            fi    
         fi
     fi
 }
 
 set -x
 
+docker pull $img
 DOCKER_ID=$(docker run -d ${dirs[@]} ${envs[@]} -w /workdir $img sleep infinity)
-trap "docker rm -f ${DOCKER_ID}" INT TERM EXIT
+trap 'traperror '"${DOCKER_ID}"' "$? ${PIPESTATUS[@]}" $LINENO $BASH_LINENO "$BASH_COMMAND" "${FUNCNAME[@]}" "${FUNCTION}"' SIGINT INT TERM EXIT
 docker exec ${DOCKER_ID} apt-get update
-docker exec ${DOCKER_ID} apt-get upgrade -y --force-yes
-if ! docker exec ${DOCKER_ID} apt-get install -y --force-yes python-software-properties apt-transport-https dpkg-dev lsb-release; then
-    docker exec ${DOCKER_ID} apt-get install -y --force-yes software-properties-common apt-transport-https dpkg-dev lsb-release
-fi
+docker exec ${DOCKER_ID} apt-get upgrade -y
+docker exec ${DOCKER_ID} apt-get install -y python-software-properties software-properties-common apt-transport-https dpkg-dev lsb-release || \
+    docker exec ${DOCKER_ID} apt-get install -y software-properties-common apt-transport-https dpkg-dev lsb-release || \
+    docker exec ${DOCKER_ID} apt-get install -y python-software-properties apt-transport-https dpkg-dev lsb-release;
 for repo in "${repos[@]}"; do
     ifthenelse "${repo}" "apt-add-repository ARG"
 done
diff --git a/cordova/makefile.am b/cordova/makefile.am
index 9d8e7c3..f0c6c23 100644
--- a/cordova/makefile.am
+++ b/cordova/makefile.am
@@ -19,13 +19,13 @@ ${ANDROID_SRC}:
 	    ( cp -r "@srcdir@/$${file}" "$${file}" && \
 	      chmod -R u+w "$${file}" ); \
 	done
-	if [ "$$(whoami)" != "root" ]; then \
+	if [ "$$(whoami 2> /dev/null)" != "root" ]; then \
 	  ${CORDOVA} plugin add https://github.com/katzer/cordova-plugin-background-mode.git; \
 	  ${CORDOVA} build --debug || ${CORDOVA} build --debug; \
 	fi
 
 ${ANDROID}: ${ANDROID_SRC}
-	if [ "$$(whoami)" != "root" ]; then \
+	if [ "$$(whoami 2> /dev/null)" != "root" ]; then \
 	  cp $< $@; \
 	fi
 
diff --git a/cordova/platforms/android/AndroidManifest.xml b/cordova/platforms/android/AndroidManifest.xml
index 9b6d49b..82f0365 100644
--- a/cordova/platforms/android/AndroidManifest.xml
+++ b/cordova/platforms/android/AndroidManifest.xml
@@ -1,5 +1,5 @@
 <?xml version='1.0' encoding='utf-8'?>
-<manifest android:hardwareAccelerated="true" android:versionCode="346" android:versionName="0.3.46" package="ch.safechat" xmlns:android="http://schemas.android.com/apk/res/android">
+<manifest android:hardwareAccelerated="true" android:versionCode="359" android:versionName="0.3.59" package="ch.safechat" xmlns:android="http://schemas.android.com/apk/res/android">
     <supports-screens android:anyDensity="true" android:largeScreens="true" android:normalScreens="true" android:resizeable="true" android:smallScreens="true" android:xlargeScreens="true" />
     <uses-permission android:name="android.permission.INTERNET" />
     <uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
@@ -11,6 +11,7 @@
                 <category android:name="android.intent.category.LAUNCHER" />
             </intent-filter>
         </activity>
+        <service android:name="de.appplant.cordova.plugin.background.ForegroundService" />
     </application>
     <uses-sdk android:minSdkVersion="10" android:targetSdkVersion="22" />
 </manifest>
diff --git a/cordova/platforms/android/assets/www/cordova_plugins.js b/cordova/platforms/android/assets/www/cordova_plugins.js
index 8ca9d88..a9fdf5b 100644
--- a/cordova/platforms/android/assets/www/cordova_plugins.js
+++ b/cordova/platforms/android/assets/www/cordova_plugins.js
@@ -3,13 +3,33 @@ module.exports = [
     {
         "file": "plugins/cordova-plugin-whitelist/whitelist.js",
         "id": "cordova-plugin-whitelist.whitelist",
+        "pluginId": "cordova-plugin-whitelist",
         "runs": true
+    },
+    {
+        "file": "plugins/cordova-plugin-device/www/device.js",
+        "id": "cordova-plugin-device.device",
+        "pluginId": "cordova-plugin-device",
+        "clobbers": [
+            "device"
+        ]
+    },
+    {
+        "file": "plugins/de.appplant.cordova.plugin.background-mode/www/background-mode.js",
+        "id": "de.appplant.cordova.plugin.background-mode.BackgroundMode",
+        "pluginId": "de.appplant.cordova.plugin.background-mode",
+        "clobbers": [
+            "cordova.plugins.backgroundMode",
+            "plugin.backgroundMode"
+        ]
     }
 ];
 module.exports.metadata = 
 // TOP OF METADATA
 {
-    "cordova-plugin-whitelist": "1.0.0"
+    "cordova-plugin-whitelist": "1.0.0",
+    "cordova-plugin-device": "1.1.0",
+    "de.appplant.cordova.plugin.background-mode": "0.6.4"
 }
 // BOTTOM OF METADATA
 });
\ No newline at end of file
diff --git a/cordova/platforms/android/res/xml/config.xml b/cordova/platforms/android/res/xml/config.xml
index 4316490..76488f0 100644
--- a/cordova/platforms/android/res/xml/config.xml
+++ b/cordova/platforms/android/res/xml/config.xml
@@ -1,10 +1,17 @@
 <?xml version='1.0' encoding='utf-8'?>
-<widget id="ch.safechat" version="0.3.46" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
+<widget id="ch.safechat" version="0.3.59" xmlns="http://www.w3.org/ns/widgets" xmlns:cdv="http://cordova.apache.org/ns/1.0">
     <preference name="loglevel" value="DEBUG" />
     <feature name="Whitelist">
         <param name="android-package" value="org.apache.cordova.whitelist.WhitelistPlugin" />
         <param name="onload" value="true" />
     </feature>
+    <feature name="Device">
+        <param name="android-package" value="org.apache.cordova.device.Device" />
+    </feature>
+    <feature name="BackgroundMode">
+        <param name="android-package" value="de.appplant.cordova.plugin.background.BackgroundMode" />
+    </feature>
+    <preference name="KeepRunning" value="true" />
     <allow-intent href="market:*" />
     <name>SafeChat</name>
     <description>
diff --git a/cordova/plugins/android.json b/cordova/plugins/android.json
index 681f25c..83b7149 100644
--- a/cordova/plugins/android.json
+++ b/cordova/plugins/android.json
@@ -20,7 +20,14 @@
     "installed_plugins": {
         "cordova-plugin-whitelist": {
             "PACKAGE_NAME": "ch.safechat"
+        },
+        "de.appplant.cordova.plugin.background-mode": {
+            "PACKAGE_NAME": "ch.safechat"
         }
     },
-    "dependent_plugins": {}
+    "dependent_plugins": {
+        "cordova-plugin-device": {
+            "PACKAGE_NAME": "ch.safechat"
+        }
+    }
 }
\ No newline at end of file
diff --git a/cordova/plugins/fetch.json b/cordova/plugins/fetch.json
index bfc05e7..6de3723 100644
--- a/cordova/plugins/fetch.json
+++ b/cordova/plugins/fetch.json
@@ -6,5 +6,22 @@
         },
         "is_top_level": true,
         "variables": {}
+    },
+    "de.appplant.cordova.plugin.background-mode": {
+        "source": {
+            "type": "git",
+            "url": "https://github.com/katzer/cordova-plugin-background-mode.git",
+            "subdir": "."
+        },
+        "is_top_level": true,
+        "variables": {}
+    },
+    "cordova-plugin-device": {
+        "source": {
+            "type": "registry",
+            "id": "cordova-plugin-device"
+        },
+        "is_top_level": false,
+        "variables": {}
     }
 }
\ No newline at end of file
diff --git a/html/index.html.in b/html/index.html.in
index a6a629c..a94ca06 100644
--- a/html/index.html.in
+++ b/html/index.html.in
@@ -1,56 +1,56 @@
-<!DOCTYPE HTML">
+<!DOCTYPE HTML>
 <html>
-<head>
-<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
-<meta name="viewport" content="width=device-width initial-scale=1" />
-<link href="safechat.css" rel="stylesheet" type="text/css" />
-<script type="text/javascript" src="jquery.js"></script>
-<script type="text/javascript" src="openpgp.js"></script>
-<script type="text/javascript" src="safechat.js"></script>
-<link href="jquery.cssemoticons.css" media="screen" rel="stylesheet" type="text/css" />
-<script src="jquery.cssemoticons.js" type="text/javascript"></script>
-<title>Safe Chat</title>
-</head>
-
-<body>
-
-<div id="header" class="header">
-  <h1>Safe Chat @PACKAGE_VERSION@</h1>
-  <div id="togglemenu">
-    <span id="username">[unknown]</span>
-    <img id="menuicon" onclick="togglemenu()" src="menu.svg" />
-  </div>
-</div>
-
-<ul id="menu" style="display: none">
-  <li onclick="backup()">Download Backup</li>
-  <li class="toolbutton"><label for="restore">Restore Backup</label><input autocomplete="off" type="file" accept="*.bak" id="restore" /></li>
-  <li id="groups" onclick="groups()">Edit Groups</li>
-  <li id="removeKey" style="display: none" onclick="removeKey()">Password Forgotten</li>
-  <li id="android-download" href="safechat.apk"><a href="safechat.apk">Download Android-App</a></li>
-  <li href="https://dev.marc.waeckerlin.org/redmine/projects/safechat/embedded/index.html" target="_blank"><a href="https://dev.marc.waeckerlin.org/redmine/projects/safechat/embedded/index.html" target="_blank">About Safe Chat</a></li>
-</ul>
-<script type="text/javascript">
-  $(function() { // on load: without cordova, remove andoid-download
-    if ("@CORDOVA@" == "0") $("#android-download").hide();
-    if (!window.FileReader) $("#restore").hide(); // not supported by browser
-    $("#groups").hide();
-  })
-  $("#restore").change(function(evt){restore(evt)});
-</script>
-
-<div id="main">
-
-  <p>start up engine, please wait ...</p>
-
-</div>
-
+  <head>
+    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
+    <meta name="viewport" content="width=device-width initial-scale=1" />
+    <link href="safechat.css" rel="stylesheet" type="text/css" />
+    <script type="text/javascript" src="jquery.js"></script>
+    <script type="text/javascript" src="openpgp.js"></script>
+    <script type="text/javascript" src="safechat.js"></script>
+    <link href="jquery.cssemoticons.css" media="screen" rel="stylesheet" type="text/css" />
+    <script src="jquery.cssemoticons.js" type="text/javascript"></script>
+    <title>Safe Chat</title>
+  </head>
+
+  <body>
+    
+    <div id="header" class="header">
+      <h1>Safe Chat @PACKAGE_VERSION@</h1>
+      <div id="togglemenu">
+        <span id="username">[unknown]</span>
+        <img id="menuicon" onclick="togglemenu()" src="menu.svg" />
+      </div>
+    </div>
+    
+    <ul id="menu" style="display: none">
+      <li onclick="backup()">Download Backup</li>
+      <li class="toolbutton"><label for="restore">Restore Backup</label><input autocomplete="off" type="file" accept="*.bak" id="restore" /></li>
+      <li id="groups" onclick="groups()">Edit Groups</li>
+      <li id="removeKey" style="display: none" onclick="removeKey()">Password Forgotten</li>
+      <li id="android-download" href="safechat.apk"><a href="safechat.apk">Download Android-App</a></li>
+      <li href="https://dev.marc.waeckerlin.org/redmine/projects/safechat/embedded/index.html" target="_blank"><a href="https://dev.marc.waeckerlin.org/redmine/projects/safechat/embedded/index.html" target="_blank">About Safe Chat</a></li>
+    </ul>
+    <script type="text/javascript">
+      $(function() { // on load: without cordova, remove andoid-download
+      if ("@CORDOVA@" == "0") $("#android-download").hide();
+      if (!window.FileReader) $("#restore").hide(); // not supported by browser
+      $("#groups").hide();
+      })
+      $("#restore").change(function(evt){restore(evt)});
+    </script>
+    
+    <div id="main">
+
+      <p>start up engine, please wait ...</p>
+      
+    </div>
+    
 <div id="status">
-
+  
   <noscript>This is a secure and encryptet chat application, that runs
-  in your browser and does not send any credentials to the
-  server. Your password and your secret key is fully under your
-  control. That's why you must enable javascript and local storage for
-  this application.</noscript>
-
+    in your browser and does not send any credentials to the
+    server. Your password and your secret key is fully under your
+    control. That's why you must enable javascript and local storage for
+    this application.</noscript>
+  
 </div>