Fix source file formatting
utils: add multiline output support

refs #2137
zscanner: add support for mnemomic names

NOTE: not completed
Fixed find_rr_pos_for_pointer.

- Code review helped.
Set node in node owner to NULL before freeing the empty node.

- Dname might be present somewhere else in RDATA.
Added missing = NULL
Adjust zone before removing empty nodes.
Quick fix.
Assert disabled, + setting owne nodes to NULL.
Better debug message. Order of operations changed.

- First insert node's owner into lookup, then perform rest of the operations.
Added dbg message.
Added debug message.
Added better adjusting.
Cleaned up adjusting functions.
Small fix in ddns.
zscanner: finish mnemonic names support

It is possible to use algorithm an certificate type mnemonics now.
This case concerns CERT, DS, DNSKEY and RRSIG types.
Fix in non-canon dname comparison.

- Added debug message to ddns.
Small changes in ddns - parameter changes.
white space fix, wrong year in copyright notice
libknot: add knot_dname_new_from_nonfqdn_str()

refs #2353