bugzid 3572: fixed product caching to key on endpoint, account and region

cache has a 4 hour timeout
added dependency lingo-1.2.jar
tidy up extra comment
Merge pull request #29 from daniellemayne/2013.07

2013.07 - bugzid 3572 fixed product caching
bugzid 3572: fixed timeout
and again
Merge pull request #31 from daniellemayne/2013.07

bugzid 3572: fixed timeout error
[maven-release-plugin] prepare release dasein-cloud-cloudstack-2013.07.6
[maven-release-plugin] rollback the release of dasein-cloud-cloudstack-2013.07.6
[maven-release-plugin] prepare release dasein-cloud-cloudstack-2013.07.6
[maven-release-plugin] rollback the release of dasein-cloud-cloudstack-2013.07.6
[maven-release-plugin] prepare release dasein-cloud-cloudstack-2013.07.6
[maven-release-plugin] prepare for next development iteration
[maven-release-plugin] rollback the release of dasein-cloud-cloudstack-2013.07.6
[maven-release-plugin] prepare release dasein-cloud-cloudstack-2013.07.6
[maven-release-plugin] prepare for next development iteration
Merge branch '2013.07'