Downgraded to Play 2.1.0. Set version to 1.6-BETA.

Namespaced scripts (scripts with colons in their ids) need to include the
percent in the URL which is encoded as %3A. This worked for 2.1.0 but not
for 2.1.1.

See Play 2.0 issue 976:
https://github.com/playframework/Play20/issues/976

Discussion:
https://groups.google.com/forum/#!topic/play-framework/ttGf-WyMHNM