Blender Git Loki

- committed new uiDef{Icon,IconText,}ButBit? functions
- change object draw flag buttons to use new functions (just an example)

While I probably wouldn't recommend patching other buttons to use the new
functions a week before release, it is a good (simple but tedious) project
to complete. Note that some code actually defined the constants for the
bit index, when such code is fixed the _BIT constant should be removed from
the headers.

Example:
DNA_constraint_types.h:
#define CONSTRAINT_DISABLE 0x00000004
#define CONSTRAINT_DISABLE_BIT 2

buttons_object.c:
uiDefIconButS(block, ICONTOG|BIT|CONSTRAINT_EXPAND_BIT, ...);

The button definition should change to:
uiDefIconButBitS(block, ICONTOG, CONSTRAINT_EXPAND, ...);

(whats that, the more correct way uses less typing, GOOD GOD!)
and the CONSTRAINT_DISABLE_BIT define should be removed.