WIP: Pupillometry experiment
FIX: Fix stim
FIX: Cleaner
FIX: Fix several bugs
FIX: Remove old code
FIX: Fix for Pyglet bug (argh)
FIX: Add stop
FIX: Better testing
FIX: Fix coveragerc
Merge pull request #132 from Eric89GXL/pupil-fixes

FIX: Pupil fixes YAY! tests pass.