DelayPacket and DelayMessage don't use RequestCache anymore, initial
commit
Reverted DelayPacketByMissingMessage
No more missing last message
Removing conversion
Need to return single tuple
MissingSequence is inclusive missing_high
Implemented cleanup/timeouts for delays
No more Cache object, only NumberCache's are allowed
No more create identifier static stuff in requestcaches, only
numbercache are allowed
Prefix is not optional, fixednumbercache renamed to numbercache.
NumberCache renamed to RandomNumberCache
Marking timed-out delaypackets as dropped
Matchinfo now has cid
Using dispersy to be able to delay packets waiting for a message in a
different community
Fixup, small bug in resume_delayed
Reducing line lengths
Merge pull request #259 from NielsZeilemaker/delay_dict

DelayPacket and DelayMessage don't use RequestCache anymore, initial