CMake: .desktop file i18n support. Requires intltool.
Gsettings: Rename app.valama to apps.valama.
CMake: gsettings/gettext support. Requires intltool.
CMake: Finish intltool gsettings/desktop file support.
CMake: Fix gsettings file with non-absolute filename.
Update Readme.
Update pot file.
Update German translation.