Merge pull request #20 from daniellemayne/2013.07

2013.07 - bugzids 3383, 3390
Merge pull request #22 from daniellemayne/2013.07

remove duplicate cloud calls when launching servers (2013.07)
[maven-release-plugin] prepare release dasein-cloud-azure-2013.07.4
[maven-release-plugin] prepare for next development iteration
bugzid 3383: attempt to remove service if deployment launch fails