Blender Git Loki

== rna cleanup ==

- after talking with brecht, changes keys prefixes with "is_pressed_alt" and so on if readonly and "pressed_alt" if not readonly
- updated the rna_cleaner.py with real prefixes and keywords so it's clear what it is being used

kw_prefixes = [ 'active','apply','bl','exclude','has','invert','is','lock',
'pressed','show','show_only','use','use_only','layers','states']
kw = ['active','hide','invert','select','layers','mute','states','use','lock']