Shorter log format uses just seconds precision.

refs #2398

Fixed off-by-one.

Change-Id: Ie8fa417ac75c97be9be917833464b13591a661f2

fixes for gerrit:994

* NOTIFY message includes serial.
* Transfer start message includes serial(s).
* Transfer end message includes elapsed times.
* Each processed xfer delta is logged.

Examples:
Incoming IXFR of 'example.com.' with '<ip>' key 'abcd.': Started (serial 43).
Incoming IXFR of 'example.com.' with '<ip>' key 'abcd.': serial 43 -> 44.
Incoming IXFR of 'example.com.' with '<ip>' key 'abcd.': Finished in 0.10s (finalization 0.00s).
NOTIFY of 'example.com.' to '<ip>': Query issued (serial 44).
Outgoing AXFR of 'example.com.' to '<ip>' key 'abcd.': Started (serial 44).
Outgoing AXFR of 'example.com.' to '<ip>' key 'abcd.': Finished in 0.75s.

refs #2398

Change-Id: Ic4d0ca486dc3cf2c4616b77f359c037d53165f1d

- Coverity: 1001979

Change-Id: I17b11a84c8ba9fad9d6d324ca8d19574a5aa4e14

Change-Id: I0a751268fb674e65ca5ccd141c037a9fab67f096

refs #2398

refs #2137

Change-Id: I327a9431ab402ffbe6fac3230a678aa34b7add80

more reasonable value, ISC nsupdate uses the same

- They were not properly implemented anyway and are not needed in the server.
- Removed tests as well.

Change-Id: Id2794fc7b29b9bf03491bbc4c168be796372bfe3

Whole RDATA compare is not needed, equality is enough.

norefs

Bug: #2396
Change-Id: Id45a84bb606872361162703e91b2ff24d9ede7e8

refs #2380

Change-Id: I940a3193f39568ed3868bbe730d131edacb56620

- Added proper variable type to print function.

- Added wrapper function for knot_node_dump()

Namely zone compilation is not required anymore.

Added hattrie_clear() implementation.

Change-Id: Iaf6bd7c33417f62afc76d8368c49aced93731409

- Using realloc instead of malloc + free.
- Coverity: 743243

refs #2137

refs #2392

refs #2137