DOC: Remove OpenCV, add current deps.
ENH: Use skimage.io if available; clean up import chain.
TST: Separately test mpl and pil backeneds of ImageSequence.
Merge pull request #65 from danielballan/release-prep

Release prep
CLN: Remove unused code, legacy from mr.
Merge pull request #66 from danielballan/remove-legacy

CLN: Remove unused code, legacy from mr.
ENH : use better setup tools
Merge pull request #67 from tacaswell/setup_upgarde

ENH : use better setup tools
RLS: Version 0.2