FULLTEXT index are only support since mysql 5.6 for InnoDB

see http://dev.mysql.com/doc/refman/5.5/en/fulltext-search.html

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>
Use more dibi for AJXP_SqlFeedStore

Signed-off-by: Etienne CHAMPETIER <etienne.champetier@fiducial.net>