added CodeEditor with line numbering from Qt sample code

ChangeLog

@@ -1,3 +1,38 @@
+2017-01-31 17:32  
+
+	* [r97] src/commands.hxx, src/webrunner.cxx:
+	  better progress indicator
+
+2017-01-30 15:09  
+
+	* [r96] src/testgui.hxx, src/testgui.ui, src/webtester.cxx:
+	  fixed window title and file modification dialog
+
+2017-01-27 15:57  
+
+	* [r95] src/testgui.hxx, src/testgui.ui:
+	  url as combobox with completion
+
+2017-01-24 14:17  
+
+	* [r94] src/commands.hxx, src/testgui.hxx, src/testgui.ui:
+	  show test result as check mark or cross
+
+2017-01-20 10:58  
+
+	* [r93] doc/footer.html.in[ADD], doc/header.html.in[ADD],
+	  doc/plantuml.jar[ADD], doc/style.css[ADD],
+	  makefile_test.inc.am[ADD]:
+	  packager fixed - fix
+
+2017-01-20 10:57  
+
+	* [r92] ChangeLog, bootstrap.sh, build-in-docker.conf,
+	  debian/changelog.in, doc/footer.html.in[DEL],
+	  doc/header.html.in[DEL], doc/plantuml.jar[DEL],
+	  doc/style.css[DEL], makefile_test.inc.am[DEL]:
+	  packager fixed
+
 2017-01-20 08:30  
 
 	* [r91] COPYING, INSTALL, README, configure.ac, src/commands.hxx,