Added second thread tests to QueryThreadLocalTest
added CountQueryThreadLocalTest and DeleteQueryThreadLocalTest
Refactoring: move query classes in new query package
move IdentityScope related classes in their own package
fixed identityscope references, moved WhereCondition to query package
moved internally used classes into internal package
InternalDaoQueryInterface and InternalUnitTestDaoAccess
updated README.md to reflect refactorings