Update to 0.14.12:

v0.14.12 (2014-11-19)
======================
	-- fix PyOpenGL related crashes when "accelerate" module is missing
	-- fix error with automatic display selection and use-display switch
	-- fix csc modules error with missing but very rarely used function
	-- re-enable zero copy OpenGL pixel uploads when safe to do so
	-- add Python lz4 and PIL (or pillow) as dependencies for RPMs
	-- more accurate cursor shape transforms on MS Windows
py-xpra updated.