changed license from MIT to BSD. existing forks and other copies may continue under MIT.
support for android device registration and updated readme
version bump to 2.1.0
do not attempt to log request timeout error if logger is nil
Merge pull request #16 from chaslemley/master

Attempting to call logger.error when logger is nil
fixing nil logger in request timeout spec
version bump to 2.1.1
Support unregister_device for Android APIDS passing in :provider => :android.

See : https://docs.urbanairship.com/display/DOCS/Server%3A+Android+Push+API

Allow passing in :provider => :android to make sure unregister_device
works and does not throw an error.

Calls:
DELETE /api/apids/<apid>

Not:
DELETE /api/device_tokens/<device_token>
Merge pull request #17 from thrillcall/master

Support Urbanairship.unregister_device for Android with :provider => :android
version bump to 2.1.2
Include rspec only in development, test
Include rake in Gemfile
Separate out ClassMethods
Generalize Urbanairship spec
Allow instantiating an Urbanairship::Client
Update README with Client
Merge pull request #19 from 6wunderkinder/master

Allow instantiating an Urbanairship::Client
version bump to 2.2.0
tag implementation (add, remove, list, add device_token to tag, remove device_token to tag
added tag methods