Slack-tunes

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Fix
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- Check if the song starts with the delimiter to avoid updating with
ads. [Jose Diaz-Gonzalez]

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- Feat: print out the error when slack gives us an error… [Jose Diaz-
Gonzalez]

- Chore: use single quotes everywhere. [Jose Diaz-Gonzalez]

- Feat: send song through asciidammit. [Jose Diaz-Gonzalez]

- Refactor: use print_function from __futures__ [Jose Diaz-Gonzalez]

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Fix
~~~

- Do not try to start the player if it is not running. [Jose Diaz-
Gonzalez]

Telling an application to do something will cause that application to start

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- Add try/except cases to catch bad AppleScript responses. [Ben Kreeger]

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- Docs: fix the pypi description. [Jose Diaz-Gonzalez]

- Refactor: move logic into updater.py. [Jose Diaz-Gonzalez]

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- Feat: add support for notifying multiple slack teams. [Jose Diaz-
Gonzalez]