Move autopinging out of 0.0.4, since it affects neither client nor server code.
Move autopinging out of 0.0.4, since it affects neither client nor server code.

nmathewson/mixminion,crooks/mixminion,Javex/mixminion,reezer/mixminion,nmathewson/mixminion,nmathewson/mixminion,crooks/mixminion,Javex/mixminion,nmathewson/mixminion,rxcomm/mixminion,crooks/mixminion,mixminion/mixminion,rxcomm/mixminion,mixminion/mixminion,mixminion/mixminion,reezer/mixminion,rxcomm/mixminion,mixminion/mixminion,reezer/mixminion,Javex/mixminion,rxcomm/mixminion,Javex/mixminion,crooks/mixminion,reezer/mixminion