Merge branch 'release/v0.1.4.hf1' into dev
Merge branch 'master' into dev

* master:
  Updated README && Removed rubinius from travis (until they fix it) && bumped version
  Added persistent methods
  replaced .rvmrc with .ruby-version
  new commit to check travis-ci
  Update README.md
  Add a Bitdeli badge to README
  Remove remaining puts
  Update .travis.yml to remove incompatible Ruby versions.
  Fix typo in APNS::Notification
  Fix typo in GCM::Notification
  Backwards compatible hashes
  Support comparing notifications.
  1. Allow for any 1.9.3 in the rvmrc 2. Allow users to set their own GCM host as advertised
  increase message size for utf messages
trying to fix ssl errors
added a retry mechanism
fixed typo
bumped final version
Merge branch 'release/0.2.0'
added kindle fire support