update debian changelog
add cqueues.assert, which searches for a string or error number in the argument list, to handle the fact that some of our error return protocols don't follow the standard Lua protocol of false/nil followed by a string
don't accidentally load _cqueues.condition twice
do fast metatable checking in controller routines using upvalues
use fast metatable checking for sockets in the controller loop, and short circuit introspection straight to the sockets C library methods
bump version