Removed MAIDSAFE_DELETE macro.
Added UpdateNetworkHealth function.
partially moving caching from cache_latest branch
minor caching related fixes
fixing a typo
Removing assert in RandomConnectedNode() and returning any random node including close nodes.
Ignoring relay messages for cache look-ups.
avoid deadlock; mute one assertion
don't re-bootstrap when routingtable is non-empty
muted one assertion
shorten the routing history to improve performance
various log message
Merge branch 'demo_testnet1' into next

Conflicts:
	src/maidsafe/routing/message_handler.cc