Updated python module - f(a, (b,c)) syntax no longer used.
Trivially added Cython support (to be experimented with).
Updated io-blocking code.
Remove and ignore visualiser binary...
Major rewrite of python library.
Rewrite 'gaff' python bot (now consistently defeats deckard).
Fix up arbiter, and make sandbox read a simple configuration file.
Fix python ioblock and support 'with blocker: ...;'
Ignore arbiter binary files.