Fix issue where a call to disconnect would automatically reconnect.
Add convenience method controller.connected()

Conflicts:
	CHANGELOG.md
	leap.min.js
Changed GitHub handle in contributors.txt
Merge pull request #166 from akenn/master

Changed GitHub handle in contributors.txt
Merge pull request #164 from leapmotion/disconnection

Fix issue where a call to disconnect would automatically reconnect.
Merge branch 'master' into serviceVersion

Conflicts:
	leap-0.4.3.min.js