Auditok

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- auditok as command line tool
- Rst documentation
- Read audio data from stdin
- Add short alias for all ADSFactory.ads() keyword arguments
- Add tests for alias
- Break audio data into chunks for audio play back (to quickly detect interruptions like Ctrl-C)

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- Bug fix: util.AudioEnergyValidator._formats = {1: 'b' , 2: 'h', 4: 'i'} instead of {1: 'B' , 2: 'H', 4: 'I'}
- Typo fix in code: StreamTokenizer.DROP_TRAILING_SILENCE renamed StreamTokenizer.DROP_TAILING_SILENCE
- Documentation updated

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First public release on Github.