request #7183: Some parameters are not properly sanitized

FRS, Forumml, and Gitphp (0.2.5) does not properly sanitize some
parameters in the request, it may lead to some injuries.

Change-Id: Iaf61cca58b277e45b0451357f1bdfda4cdb75aea
Merge commit 'refs/changes/42/2742/1' of ssh://gerrit.tuleap.net:29418/tuleap into HEAD

* ssh://gerrit.tuleap.net:29418/tuleap:
  request #7183: Some parameters are not properly sanitized

Change-Id: I5495ab197c5215686780f06cf6d868b3900025f0
This is Tuleap 7.2.99.29

Change-Id: Ic4fbe2eb5d97b8d77791510b582a9463a0c094ef