Fix file url encoding bug
Remove invalid dependencies
Fix missing return values
Add a generic cross platform replacement for xhotkeymanager
See details:

 * Handle mods correctly (ProposalList)
 * Move eventhandling to into their related classes
 * -> (ProposalList,  InputLine)
 * Replace XHotkeyManager by GlobalHotkey
 * Set correct forcus policies and proxies
 * Fix ugly "XFocusEvent while grabbed" Bug (Still a workaround)
 * Make mainwidget a singleton
 * Hide if inputline loses focus
 * Make actions accessible over model-view
Add proper shortcuts
Unregister old hotkeys before adding new ones
Add a widget for setting the hotkey to the settings dialog
Change the order, so that the SettingsDialog has deserialized objects.
Cleanup code
Finally the focus behaviour should work.
Add theme handling from settingsdialog
Replace Timer.h from Björn B. by QTime