Make interface categories configurable and add more fine-grained options
Fix idnits warnings and bump draft references
Add statement for RFC 7084 coexistence
Merge branch 'master' into hncp-pre-01
Wordsmithed the border discovery to have a list of explicit steps.
Added hybrid category.
Added update numbers to the network state hash. Without it, collision detection across 'long' distances on a large network is not guaranteed to work.
Revert "Added update numbers to the network state hash. Without it, collision detection across 'long' distances on a large network is not guaranteed to work."

This reverts commit 46c62a05e3fd7238de823a7c0f9a1a13198e5dcf.
Rewrite hybrid category

Define it as specialization of internal instead of external. Generalize it.
Various editing fixes + fixed the update algorithm's handling of same update number and different node data hash.
Added .xml.check target to run aspell.
Merge branch 'hncp-pre-01'

Conflicts:
	Makefile
Official hncp-01 last edits - added changelog and updated Makefile, dates, etc.