Update from internal repository

 - New module: Configuration
 - Support for controller role request HA.
 - More efficient controller communication.
 - Many other improvements and bugfixes.
Update from internal repository

 - Added a fixed priority scheduler to SocketManager.
 - Updated to latest version of LoxiGen.
 - Added a MAC address parsing helper function to Configuration.
regenerate module manifests
add precheckin build/test script
add .abat-automerge
test pullrequest system
Merge into master from pull request #2:
test pullrequest system (https://github.com/floodlight/indigo/pull/2)
test pull request 2
Merge into master from pull request #3:
test pull request 2 (https://github.com/floodlight/indigo/pull/3)
Downgrade log messages from error to verbose
Merge remote-tracking branch 'floodlight/master'