request #5816 - Textarea fixed size lost with 6.7 release

Adding css for bootstrap 2.3.2 compatibilty to take account text input size
in trackers.

Change-Id: I821d59b3514db652f9889bb799fb03d0359c5553
Merge commit 'refs/changes/62/1562/7' of http://gerrit.tuleap.net/tuleap into tuleap-stable-master

* http://gerrit.tuleap.net/tuleap:
  request #5816 - Textarea fixed size lost with 6.7 release

Change-Id: Ie82a9155cb5c3217a565b77f682f6973b81e58bf
Tuleap 6.8.99.20

Change-Id: Ic9c28e54b45c2cc99e09c1b34a08464fe7a663ad