Merge pull request #17 from jbreitbart/master

Namespace support, updated to the Google App Engine 1.7.3, youtube plugin fix
Merge pull request #18 from jbreitbart/master

Added image plugin + small bugfixes
Merge pull request #19 from jbreitbart/master

Code cleanup and bugfixes
Merge pull request #27 from jbreitbart/master

License files + bug fix default plugin
Added first version of our server side namespace check.