Cherry-pick changes from release-0.2.

* Added WebUI automated tests
  Ie5dd067f52d4906fc30ac11e820296b7dc797882
* Added scripts for HA testing
  Ib2d7f28458de3fe55f80f3e0955637ba907784b6
* Fixed README.
  I677705d7bc1199632b034f4111fa72ba24ddd71f
* Fixed README again.
  I489578ff1f51685b4b62193f4cd5e61ce8092087
* Fixed IP address in automated tests for API Service
  I10571eec95f9b3ad8e0af0847da94a22a9847b84

Change-Id: I36bc87ec21c3082fe1502a5191c032dc67224bf0