playframework/Play20 — pull request #1314 by BertrandDechoux (2013-07-09 20:27:01+00:00)
Title: Upgrade less to >= 1.4.0 (will solve css optimisation)

Starting from version 1.4.0, less allows to cast a css file as a less file.
http://lesscss.org/#-importing

As a consequence, it becomes trivial to build a single css files from all other less/css files without modifying legacy css files which might belong to external components that shouldn't be modified.