Replace strrcode with RCode::to_s
Replace rcode with RCode::to_s(rcode)
Use Err# prefix
Add dns.cc to testrunner deps
Fix typo
Updated as per registry
Remove strrcode
Merge pull request #1291 from cmouse/fix-issue-1290

Fix issue #1290
adapt notify to changes in merge of #1291
also build extra binaries on travis