- Reverted to slower SM in Makefile.am

Conflicts:
	src/common/errcode.h

- Needs a lot of ironing out
- Data from parser are wrong with DNSKEY and NSEC3 RRs

Conflicts:
	src/Makefile.am
	src/common/errcode.h
	src/libknot/rrset.c
	src/libknot/util/descriptor.c
	src/libknot/util/descriptor.h
	src/libknot/zone/zone-contents.c
	src/zcompile/zcompile.c

- Warning to be fixed

fixes 60e9d61d
refs #2192

This reverts commit 060d5e20.
Crashes parsers - cannot free fp as it is used during parsing.

fixes #2236

Coverity #742091 (resource leak)

Coverity #742059 (logically dead code)

Coverity scan #742136 (dereference before null check)

Coverity scan #742057 (logically dead code)

Coverity scan #742053 (logically dead code)

Coverity scan #742054 (logically dead code)

Coverity scan #742061 (dereference after null check)

Coverity scan #742118 (resource leak)

Coverity scan #743231 (same on both sides)

Coverity scan #743242 (Unused pointer value)

Coverity scan #742131 (resource leak)

Coverity scan #742132 (resource leak)

refs #2192

refs #2192

refs #2192 4h

fixes #2174

Not so slow with large number of zones now.

refs #2174, #2204