Improving docstring + style/convention edits
Added some warnings for transparency.
PEP8 compliance!
One line.
Changed variable names so they actually make sense (followed Tony's
suggestion).
Hide experimental GSoC functions for 0.9 release
import Fedor's contribution
TEST: add unittest and check with travis
DOC: update return according to wu's method
TEST: fix returned tuple
TEST: fix unittest
DOC: fix refs
MAINT: put AA method in draw.*_aa
DOC: remove wu in methods
Implement line_aa
Anti-aliasing
MAINT: bezier_segment is private
MAINT: val in [0,1]
DOC: split non-AA/AA
FIX: division for value