Change of german language code
Merge pull request #114 from linuxrider/master

Corrected german language code
Autotools improvements
Let control number of pomodoros to a long break
Notify start of pomodoro by disabling screensaver
Suppress warning about destroyed dbus proxy

It seems normal behavior when closing dbus connection.
Fix remidner notification
Disconnect settings 'changed' signal when destroying objects
Update Polish translation