network logging

Major upgrade. See CHANGELOG.txt

v0.46

Big package cleanup going on. This is probably not finished yet.

Pypi release of latest major change set.

Spin and Cog APIs changed (eng_turn, eng_close, orb_turn, orb_close);…

… Callstruct for engine accepts has changed; SpinLineConsole API has changed towards the callstruct model; engine.init_orb no longer takes argument spin_h.

Heavy rewrite of concurrency layer, and that has affected several API…

…s. If you're using an earlier version, give the glossary a quick read to understand concepts that have changed. In particular, the way that spins are created is significantly changed.

Release contains snake and basic draw program

Refactor to engine.send. Now expects a byte array.