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Merge pull request #1831 from jbsmith86/master

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Obvious Fix.
disable rhel tests completely for now
Merge pull request #1841 from opscode/lcg/disable-rhel-e2e

disable rhel tests completely for now
Modify travis notifications so that we are notified only when a stable branch is broken.
Update for new config default enable client-side key generation
Update for CookbookSiteStreamingUploader change to use config option ssl_verify_mode
Merge pull request #1844 from opscode/sersut/tune-down-travis-notifications

Modify travis notifications so that we are notified only when a stable branch is broken.