Corrected the order of the status and warning fields on the EOF packet

The status flags and warning count fields were in the incorrect order
for the EOF packet. The correct definition can be found at
http://dev.mysql.com/doc/internals/en/generic-response-packets.html#packet-EOF_Packet
Merge pull request #5 from thatalextaylor/master

Corrected the order of the status and warning fields on the EOF packet