CAY-1522 EJBQL query don't support quotes

integrating Ilya's fix with the current state of the quoter

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/trunk@1449474 13f79535-47bb-0310-9956-ffa450edef68
CAY-1522 EJBQL query don't support quotes

release notes

git-svn-id: https://svn.apache.org/repos/asf/cayenne/main/trunk@1449475 13f79535-47bb-0310-9956-ffa450edef68