Experimental new keymap: subdivision surface level hotkeys fix.

The hotkeys for shifting the subdivision surface level up/down weren't
working in edit mode if the active object wasn't selected.  Also,
even when in edit mode, those keys were affecting other objects.
Fixed both issues.

Also, the save, open, etc. hotkeys felt a little sticky, because they
were set to 'CLICK' instead of 'PRESS'.  Fixed that too.


git-svn-id: https://svn.blender.org/svnroot/bf-extensions/contrib@4738 96b784f8-4ae3-dd11-aff7-0030488c597c