Fix request #6132: Docman html files are not opened in browser
This is a revert of git #93a077b9f8d94b81324831d94f3a766fa866d658.

Change-Id: Iefe5a3ac86808a0bbbccdeab1dcdc720d4430b48
Merge commit 'refs/changes/34/1834/1' of http://gerrit.tuleap.net/tuleap into HEAD

* http://gerrit.tuleap.net/tuleap:
  Fix request #6132: Docman html files are not opened in browser This is a revert of git #93a077b9f8d94b81324831d94f3a766fa866d658.

Change-Id: I25364f90ef891aa278395c8ef65546e972cadf2a
This is Tuleap 6.10.99.2

Change-Id: Iec8d72de1183e321a4cc9ff6b0b648a099a7703d