some changes in tests.
extend to complete the mysql dialect.
completed the dialect for mysql.
completed the dialect for mysql, and do some re-factory for the original code.
completed the dialect for mysql, and re-factory is applied.
completed the dialect for mysql, and re-factory is applied.
completed the dialect for mysql, and re-factory is applied.
completed the dialect for mysql, and re-factory is applied, paging function is completed.
fixed a bug that objects will not be updated instead they will be re-inserted in mysql.
fixed a bug that when deleting objects in mysql with criteria containing key column, it would fail. So we put "SET SQL_SAFE_UPDATES = 0;" before deleting script.
Merge pull request #1 from angelvan2012/local

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