Added a number of funtions for keyboard shortcuts.
Update German translations. Update other translation file formatting.
Remove placeholders from German readme.
Merge branch 'master' of github.com:bjohas/Zutilo into bjohas-shortcuts
Minor renaming and rearranging.
Merge branch 'bjohas-shortcuts' into transifex

Conflicts:
	Extra/AMO/AMO_README_de.html
	chrome/locale/de/zutilo/README.html