changelogs
ENH: movieStim minimal .contains(); closes #340

- only works with norm or pix units; ori not accounted for
- minor code clean-up in visual.MovieStim and the movie demo
RF: movieStim.contains() and overlaps() working for pix

- only if the window has units of pix
- pos and ori should be handled automatically
- will support norm and other units after working out units auto-conversions
  (via ioHub?)
Merge pull request #350 from jeremygray/master

changelogs, movieStim.contains()