Improved the duplicate ticket search. Now it search for partial and complete phrases enter into the summary in new ticket.
change the keywords suggest : add the query page javascript to separate file, change the db use so it can find keywords in query page also.

git-svn-id: https://svn.apache.org/repos/asf/bloodhound/branches/bep_0013_dynamic_clientside_features@1616294 13f79535-47bb-0310-9956-ffa450edef68