fixed some more debian build issues - changed like in webtester; refs #12

debian/control.in

@@ -1,7 +1,7 @@
 Source: mrw-c++
 Priority: extra
 Maintainer: Marc Wäckerlin (http://marc.waeckerlin.org) <marc@waeckerlin.org>
-Build-Depends: debhelper (>= 7), pkg-config, autotools-dev, doxygen, graphviz, lsb-release, libiberty-dev [!precise !lucid !wheezy !squeeze], binutils-dev, libboost-thread-dev, zlib1g-dev
+Build-Depends: debhelper (>= 7), pkg-config, autotools-dev, doxygen, graphviz, lsb-release, libiberty-dev [!precise] [!lucid] [!wheezy] [!squeeze], binutils-dev, libboost-thread-dev, zlib1g-dev
 Standards-Version: 3.8.1
 Section: libs
 Homepage: https://dev.marc.waeckerlin.org/projects/mrw-c++