improved sqlserver 'doModifyLimitQuery' select-from pattern
added testcase for sqlserver 'doModifyLimitQuery' select-from pattern
to test preg_replace performance
sqlserver test 'testModifyLimitQueryWithExtraLongQuery' is now verified
with assertEquals
Merge pull request #622 from jaylinski/master

improved sqlserver 'doModifyLimitQuery' select-from pattern