Avoid _SERVER[\'REQUEST_URI\'] usage
Do mot purify wiki page names
Merge remote-tracking branch 'origin/3580_sanitize_of_hazardous_characters_on_wiki' into tuleap-stable-master

* origin/3580_sanitize_of_hazardous_characters_on_wiki:
  Do mot purify wiki page names
  Avoid _SERVER[\'REQUEST_URI\'] usage

Change-Id: Ifa2a898abddc58a3624c507e6b31723b2d87de1b
Tuleap 6.1.99.3

Change-Id: I9a65c73083d4d65a07242d620b9db8616b624716