Added better debug for self <> not self to hncp_pa _tlv_cb.
Updated the test_hncp_net *bird14* test cases to test for a long period of time (at least the guaranteed prune time). It seems there is an issue there, tests failing. To be continued..
Fixed the bird14 test to be correct - now making sure that in _static_ environment, there are no changes over 2*WORRIED*RETRY interval. Bug remains yet to be fixed though.
_Any_ TLV change should call schedule (due to prune etc needs), not just own. Also removed duplicate network_hash_dirty setting.
Added debug message to neighbors being removed.
Made the node data requests be ignored if a prune is pending; that way, there will be no unreachable ghosts in the HNCP network. (Alternative was to make the code prune immediately as needed, but this gives better guarantees as far as CPU usage is concerned.)
Merge branch 'neigh-ping-fix'

Conflicts:
	src/hncp_pa.c
	src/hncp_proto.c
	src/hncp_proto.h