Merge pull request #1324 from mind04/query-throw

catch sql exceptions in replaceRRSet and replaceComment
fix broken sqlite3 insert-record-order-query-auth query
add sqlite3 presigned tests to travis
Portability fix for formatting IPv6 reverse names
Merge pull request #1326 from zeha/fix-solaris-setptr

Portability fix for formatting IPv6 reverse names
s/trac/github/
Merge pull request #1325 from mind04/query

fix broken sqlite3 insert-record-order-query-auth query
schema change gmsql and gmysql backend
database schema change gpgsql backend
database schema change gsqlite3 backend
add skipreason nometa for backends without metadata storage
use schema.sqlite3.sql for opendbx-sqlite3 backend tests
database schema change goracle backend
always store non DNSSEC metadata in oracle backend
remove old schema from doc
use new schema for api test
Webserver: try harder to always return *some* response

Even a 500 is better than a connection reset.
Add loglevel config setting to recursor
Add request debug logging to webserver
JSON API: add search-data

Searches for zones, records, comments.