ALlow single passing a single node and virtual_ip to create a load balancer.
Merge branch 'working' into pyconau
Added the wait_for_build() convenience method.
Fixed an issue with utils.get_checksum() taking a lot of RAM with large files. Issue #122.
Added SYD endpoints to fake response.
Merge branch 'working' into hash
Added some tests
Added unit tests for wait_for_build().