Merge pull request #7 from nsendetzky/master

Streamlines phing target description
Merge pull request #8 from nsendetzky/master

Adds release target to phing file
Merge pull request #9 from nsendetzky/master

Adds prompt for version if not available
Merge pull request #10 from nsendetzky/master

Adapts attribute export tests
Merge pull request #11 from nsendetzky/master

Adds PHP 5.5 for travis builds
Adds travis-ci status
Merge pull request #12 from nsendetzky/master

Clears the manager/controller factory caches to avoid side effects