Fix request #7504: No ability to make search in mediawiki compatibility mode

Change-Id: Ia1af1e9b7da1f8986e621cac9b7dd3eccf76e486
request #7503: CI job bad parameters with svn

Now instead of trying to launch the job with this url:
http://jenkins.les.internets/job/Steeve/buildWithParameters?param=value/build?token=other

it will do
http://jenkins.les.internets/job/Steeve/buildWithParameters?param=value?token=other

Of course it still works without parameters:
http://jenkins.les.internets/job/Steeve/build?token=other

Change-Id: I15b46ed6af55c133bbf8809f1cf33c2e9a252b99
request #7498: Changing rank on graph is not working

Change-Id: Ife432b0e0fba4bc2ad83307a7a96f7bd6866a806
request #7499: User home sanity check is too slow

libnss-mysql + nfs partition is not an ideal mix for good performance.
Some system check events are reported to take 15min which is not
acceptable as it slow down the execution of other events (eg. create git
repository).

We now execute the user home sanity check on a daily basis.

Change-Id: I6b89bc5c07c35b4e1c768b5bcf50eae9bf133aaf
Fix request #7458: External XML Entity Injection

A authenticated user in position to exploit this issue would be able to
read the files from the system and thus affect it’s confidentiality.

More details on XXE:
https://www.owasp.org/index.php/XML_External_Entity_%28XXE%29_Processing

This impacts:
- load of xml configuration (agiledashboard, trackers, …)
- soap documentation
- migration tv3 ⇒ tv5
- Instant Messaging

Please note that the fix is based on php function
libxml_disable_entity_loader() which:
- is available since PHP 5.2.11 (PHP 5.1.6 will have to upgrade to PHP
  5.3)
  http://php.net/libxml-disable-entity-loader
- is not thread safe
  https://bugs.php.net/bug.php?id=64938

Change-Id: I6fb08c070de8f14bafc122d43a074a747d845fb6
Tuleap 7.5-4

Change-Id: I454945dbd2ff978b88e69b89801d04f6b13e7be0