fix directory handling

TODO: rm -rf /home/mediawiki/srv/ on prod4 and prod8
Adding MediaWikiChat to Orain repo
correction
Adding MediaWikiChat to extloadwiki
specify php.ini to use (fixes HHVM issues)
Adding some extensions to be tested on extloadwiki
adding more extensions for testing to extloadwiki
eliminating blank space
use QuestyCaptcha instead of Asirra (#421)
fix syntax issue added last night which was not fixed