docs($license) switch to MIT license
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Merge branch 'develop'

Conflicts:
	LICENSE
	bower.json
	package.json
docs(README.md): coverage report for master
docs(api.md): start of API documentation

This will start the move of API documentation from the readme into a specific file in the new docs folder.  The readme will serve as a short "getting started" guide instead, with links to more specific docs.
docs(README.md): simplify readme, point to other docs pages
docs(README.md): document browser support

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docs(api.md): return value for grab_now & grab were wrong

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docs(examples.md): grab video file frame-grab example

closes #7
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docs(examples.md): fix in-progress badge

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docs(examples.md): remove unneeded line

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docs(examples.md): fix doc relative links

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docs(examples.md): more broken relative links

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chore(package.json): use latest express stable