Updated MySQL to use ANSI style quoting for identifiers
Updated MySQL to use ANSI style quoting for identifiers

* Only reason this was changed back was due to the DO JDBC adapter not
  passing with MySQL specs.  A better approach is to file a bug for
  the do_mysql JDBC driver to set the same options as the do_mysql C
  driver.

tillsc/dm-core,tpitale/dm-core,datamapper/dm-core,alloy/dm-core,ar-dm/ardm-core,engineyard/dm-core