This is about adding more options to force slave retries

Two new variables has been added:
slave_transaction_retry_errors
- Tells the slave thread to retry transaction for replication when a
  query event returns an error from the provided list. Deadlock and
  elapsed lock wait timeout errors are automatically added to this list
slave-transaction-retry-interval
- Interval of the slave SQL thread will retry a transaction
  in case it failed with a deadlock or elapsed lock wait
  timeout or listed in slave_transaction_retry_errors

Other changes:
- Simplifed code for slave_skip_errors (to be aligned with
  slave_transaction_retry_errors)
- Renamed print_slave_skip_errors() to make_slave_skip_errors_printable()
- Remove printing error from init_slave_skip_errors as my_bitmap_init()
  will do that if needed.
- Generalize has_temporary_error()