- TTLs might get mixed up if we added RRSIG just as any other record

- Structures need to be renamed a bit, missing doxygen
- Optimization pending, but that's okay, since future zone API should take care of those

- RRSIGs from node are added to rrinfo section.
- When putting RRSIGs for each section, proper RRSIGs for each RRSet are syntesized and later freed.

- Added new public alloc helper functions to mempattern.h.
- RRSet owners are not allocated using memctx, because they might be dropped later and because DNAME has no memctx API.
- Only packet had its own memctx at the time of writing. Later, most RRSet operations should use custom allocators, for now, no allocator is used.

Dnstests Valgrind Check

Extra 32B is allowed for reachable, as dlopen() may cause this,
but it shouldn't be treated as an error.

Conf Zone Name

Nsupdate Update Fixed

fixes #207

Include Dir

closes #206

- packet is assembled in the correct order at the end
- packet is not sent until the 'send' command
- more descriptive logging