Bluetooth discoverable test, associated host-side class
Move host-side code to bluetooth utils
Bluetooth discoverable test
Updates as per review; also use common methods in pull 600
Change common method names to same format as others, verify when bt enabled/disabled
Fixes for using methods in pull 600
Post-review updates
Merge branch 'master' of https://github.com/mozilla/gaia-ui-tests into bluetoothdiscover
Final post-review changes
Merge remote-tracking branch 'remotes/rwood/bluetoothdiscover' into pr704

Conflicts:
	gaiatest/atoms/gaia_data_layer.js
Add a requirements.txt file to specify the package needed for the bluetooth test
Add manifest file for bluetooth tests
Merge pull request #1106 from bobsilverberg/pr704

[Bluetooth] Device discoverable test