Revert "[#1876] artifacts named '*.jar' should not be treated as modules."
Merge pull request #814 from playframework/revert-803-1.3.x

Revert "[#1876] artifacts named '*.jar' should not be treated as modules...
Merge branch '1.3.x' of https://github.com/playframework/play1 into 1.3.x-h2_dynamic_webport