Js.mocha

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* Fixed: use `Runnertotal` for accurate reporting

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* Added `Hook`
* Added `Runnable`
* Changed: `Test` is `Runnable`
* Fixed global leak reporting in hooks
* Fixed: > 2 calls to done() only report the error once
* Fixed: clear timer on failure. Closes 80

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* Fixed return on immediate async error. Closes 80

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* Fixed: make mocha.opts whitespace less picky [kkaefer]

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* Added `--interfaces`
* Added `--reporters`
* Added `-c, --colors`. Closes 69
* Fixed hook timeouts

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* Added `-C, --no-colors` to explicitly disable
* Added coffee-script support