NPE caught by labisso
extra null pointer testing, because can you really ever have too much
null testing? I dont think so, not when GCE is in play.

Also a little bit of lipstick...
Conflicts:
	src/main/java/org/dasein/cloud/google/network/LoadBalancerSupport.java
try 2 at fixing the NPE labisso found
Conflicts:
	src/main/java/org/dasein/cloud/google/network/LoadBalancerSupport.java
try #3
Merge pull request #123 from unwin/develop

NPE caught by labisso