Bind: Added 'ignore' option for non-zone domains.

Now having non-zone record in BIND-type zone file will cause
pdns to ignore only this record, not the whole domain.
Bind: More careful check for non-zone data.

Check if RR ends with domain name.
Bind non-zone: more carefull check + tests.
merging with cyclops1982, fixing #719
Fix for startup
regression tests update
*Actually* ignoring non-zone. Skip test on tinydns.
using endsOn
Fix for max() args and variable name
tests update
reindent declarations, fix typo
Merge pull request #829 from paboldin/bind-nonzone

BIND backend: Ignore non-zone entries in BIND files