[wp-trac] [WordPress Trac] #30755: Add Slack notifications to Travis CI

[WordPress Trac]

#30755: Add Slack notifications to Travis CI
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 Reporter:  nacin         |      Owner:
     Type:  defect (bug)  |     Status:  new
 Priority:  normal        |  Milestone:  4.1
Component:  General       |    Version:
 Severity:  normal        |   Keywords:
  Focuses:                |
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 Using https://travis-ci.org/aaronjorbin/develop.wordpress for now.

 The reformatting was the result of the `travis` CLI client, which was used
 to encrypt the credentials.

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Ticket URL: <https://core.trac.wordpress.org/ticket/30755>
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