New feature #07664: Allow unix_socket on installation and connexion string (use socket directly in DB location)
Dev: maybe adding more protocol : http://dev.mysql.com/doc/refman/5.5/en//connecting.html#option_general_protocol
Dev: but seem needed only for some ... hoster
Merge branch '2.05' of github.com:LimeSurvey/LimeSurvey into 2.05