Entity name in WS response / test_ws.php
Still some improvements in WS
Several modifications ...

1/ Fix Acknowledge / Downtime management problem with Shinken 1.4
2/ Authorizes to associate a Ticket to a Downtime
3/ Authorizes to create a Ticket for End paper prediction
Merge pull request #1 from ddurieux/glpi0.84

Glpi0.84, last modifications