Bugfixes and a couple of small improvements to the DHT code.
* fixed up buggy overloading for the udplayer (for testing).
* added processing multiple (5) remote processes per tick.
- (1 wasn't enough in testing, and led to dropped peers)
* removed unused variables from query data structure.
* #defined out debugging in bdSpace, removed old functions.
* More agressive attempts to find proxies for connections.
* made "final query attempt" use exact peer address rather than midid.
- mid id meant that the target wasn't always returned.
* tweaked bdconnection debugging.
* increase CONNECTION_MAX_TIMEOUT from 30 => 45. wasn't enough!
* Limited bdQuery::QueryIdlePeriod to 15min (was unlimited).
* added bdQuery::PotentialPeer cleanup functions - for more robust reporting.
* fixed bdQuery debugging printouts.
* Implemented BITDHT_QFLAGS_UPDATES flag.
git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@4398 b45a01b8-16f6-495d-af2f-9b41ad6348cc
