newlines
whitespace
imports
add __all__ and remove unused var
Fix for 4B colour channel on screen capture

 * Geist only supports Windows with 32 bit colour depth
 * Set the bitmap bmiHeader.biBitCount to 32
 * Create numpy array as h x w x 4B
 * Strip out alpha channel and swap bgr to rgb
Merge branch 'refactor' of git://github.com/ant1441/Geist into ant1441-refactor

Conflicts:
	geist/backends/__init__.py
	geist/version.py
Merge pull request #4 from ant1441/alpha-channel-bugfix

Fix for 4B colour channel on screen capture