Apply the first surface patch
Apply surface patch
Update OSX doc
Forgot a line to delete
Factorize pixel cast and implement SOLARUS_SCREEN_DOUBLEBUF flag
Finalize all patchs : first check
Finalize all patchs : second check
Minor fix
Revert "Apply surface patch"

This reverts commit 3609665e1b412b78373c021c28b48291fc10084b.
Merge pull request #172 from vlag/surfacePatchMaster

Surface patch for master branch
Update cmake configuration of SOLARUS_SCREEN_DOUBLEBUF.
Remove unused variable.
Fix double-buffering check.
Remove another unused variable.
Update ChangeLog about pixel-precise image format.
Merge branch 'master' into solarus-1.0.0

Conflicts:
	include/lowlevel/Surface.h
	include/lowlevel/VideoManager.h
	src/lowlevel/Surface.cpp