Remove embedded Firebug

Change-Id: Idf2b502f620d1e2acaf553d2d5f4ed0d4139b8b7
Merge commit 'refs/changes/93/1893/1' of http://gerrit.tuleap.net/tuleap into HEAD

* http://gerrit.tuleap.net/tuleap:
  Remove embedded Firebug

Change-Id: I642b694b07e1e6c35b8daaffa5c3fe42de25b303
This is Tuleap 6.10.99.13

Change-Id: Id1ecf142a6f03233c2639ac81c472eb53737c4d4