- Changed pointer comparison to semi-full dname comparison.

- function rrset_get_next_dname needed a fix.

Conflicts:
	Knot.files
	src/Makefile.am
	src/libknot/nameserver/name-server.c
	src/libknot/rdata.c
	src/libknot/updates/xfr-in.c
	src/libknot/util/descriptor.h
	src/libknot/zone/zone-diff.c
	src/zcompile/parser-util.c
	src/zcompile/zparser.y

This is because BADTIME affects wire size and we
need to know it in advance.

Needs cleanup, just to make things work for a while.

This allows trie to modify duplicated nodes.

- Needed when RRs were destroyed or copied - DNAMEs insided have to be released/retained.

Limitations:
* no dname conversion yet (wrong ordering)
* some traversals won't be implemented (probably won't be needed)
* no index building yet (slow ordered search)

The reason is we break the aliasing rules a lot,
this is not neccessarily a bad thing but we need to either
choose to adhere to the rules and add code complexity or
disable it (only gcc attempts to do it by default).

This enables functionality when name is preallocated.

refs #2137

Connect and send operations are sepparated now.

refs #2137

refs #2137

- Added proper checks for writing beyond wire boundaries

- Disabled DNAME compression (was not working with AXFR)
- Fix in RR size function.

refs #2137

Conflicts:
	src/knot/server/zones.c