Map "ö" to ":" (instead if "Ö")
Removed unneccessary ":" in front of the mapping command
Use the "+" register for copy/paste (was "*")
Use [CTRL]+[TAB] (and [SHIFT]+[CTRL]+[TAB]) for browsing through open buffers
Adapt some annoying key bindings

- No more selecting with [SHIFT]+[->] ...
- No more maximizing the window you have switched to
Document key bindings