improved test performances for sq (reuse iConnection in DBUnits)
improved test performances for sq (reuse iConnection in DBUnits)
improved test performances for sq #2 (use sonar.jdbc.schema property to explicit schema for DBUnit)
improved test performances for sq #3 (use MetaDataHandler for MySQL)
improved test performances for sq #3 (use MetaDataHandler for MySQL)

Conflicts:
	server/sonar-search/src/test/java/org/sonar/search/SearchServerTest.java