add docker files, improve dbus interface

.docker/build-ubuntu.sh

@@ -0,0 +1,18 @@
+#!/bin/bash
+
+set -e
+
+rm -rf build-ubuntu
+mkdir build-ubuntu
+
+# patches
+git apply patches/qt5.6-qversionnumber.patch
+git apply patches/qt5.5-qstringlist-and-qinfo.patch
+
+# build
+cd build-ubuntu
+cmake -DKDE_INSTALL_USE_QT_SYS_PATHS=ON -DCMAKE_BUILD_TYPE=Optimization -DCMAKE_INSTALL_PREFIX=/usr -DBUILD_FUTURE=ON -DBUILD_TESTING=ON ../sources
+make
+
+# tests
+xvfb-run make test