Initial regexp generated client class.  API not even close to final
s/sequential/serialize
Add tests for 64 bit unsigned integers
definitions for qid and stat structs
more flexible array field types
Ditch UInt field for predefined integer fields based on struct module
Update tests to match changed fields api
update pyixp.messages to use predefined integer types from pyixp.fields
notag value should be 0xffff
header should be little endian
send version packet on connect with conservative max message size
correctly handle responses to messages sent with no tag