gvlproject / cloudbridge / 780 / 7

Pull #116

travis-ci

Fix several small bugs

Changes:
  - Fix a bad reference to floating_ips. It is now under internet gateway.
  - The disk status enum was wrong; it is fixed. Also, detect the IN_USE status.
  - Adding/removing firewalls to live instances is implemented.
  - self.provider -> self._provider in FloatingIPContainer.

Test stats after this CL
========================
Ran 58 tests in 1576.073s

FAILED (SKIP=1, errors=21, failures=9)

47 of 1510 branches covered (3.11%)

2454 of 6814 relevant lines covered (36.01%)

0.36 hits per line