Merge pull request #272 from AppScale/testing

Merged changes from 1.6.5 to 1.6.6
bumped version number to 1.6.7
Merge pull request #300 from shatterednirvana/release-1.6.7

bumped version number to 1.6.7
fixed broken rabbitmq tests by updating mocks, and not execing rabbitmq again after god starts it
using json for start_roles in tests, as that's what the soap interface now takes
using json for get_role_info, as that's what the soap interface now takes
actually starting rabbitmq since god doesn't do it
Merge pull request #301 from shatterednirvana/fixed-broken-unit-tests

Fixed broken unit tests
Merge pull request #302 from AppScale/testing

Release 1.6.7
added in missing mock
Merge pull request #306 from shatterednirvana/nginx-test-fix

Nginx test fix
merged with testing