prepare 2.5.3

doc/en/release_notes/centreon-2.5.3.rst

+==============
+Centreon 2.5.2
+==============
+
+
+*******
+Warning
+*******
+
+This version include a couple of security fixes. Please proceed to the update of your platform if your centreon is not in version 2.5.3 at least. 
+
+
+******
+Notice
+******
+If you are upgrading from a version prior to 2.5.2, make sure to go through all the release notes available
+`here <http://documentation.centreon.com/docs/centreon/en/latest/release_notes/index.html>`_.
+
+*********
+CHANGELOG
+*********
+
+- #5895: Security Issues : CVE-2014-3828 & CVE-2014-3829
+- #5888: Differences between update and fresh install for Insert in index data field
+- #5829: Add config file in parameters for all crons of Centreon in order to install centreon on different directories
+- #5852: Fix problem with massive change for "Inherit contacts from host" in service form
+- #5841: Empty dependancies are now remove automaticaly
+- #5840: Fix problem with host duplication when this host has a "'" in the alias 
+- #5790 & #5813 & #5750: Fix problems on Tacktical overview
+- #5786: Fix problem when generating correlation config file.
+- #5756: Fix problem with centstorage => Table log is growing to much
+- #5609: Push Centreon Broker table to UTF-8
+- #5589: Fix problem with Contact inheritance between service and its template who doesn't work
+- #4865: Fix problem with search in Eventlog