Modify the subclassed SQLExceptions so they can be thrown for vendor specific cases not just the defined SQL States

Change the wording for each SQLException to

The subclass of SQLException thrown when the SQLState class value
 is 'XXX', or under vendor-specified conditions.

I modified the following Exceptions:

SQLDataException
SQLIntegrityConstraintViolationException
SQLInvalidAuthorizationSpecException
SQLNonTransientConnectionException
SQLSyntaxErrorException
SQLTransactionRollbackException
SQLTransientConnectionException