fix compiler warning in lua-auth.cc
REST API: report errors in search-log
Default 'disabled' to 0/f (vs. NULL) in gsql backends

Otherwise, records would effectively be disabled when the user wasn't
explicitly inserting 0.
Correct MySQL datatype mismatch for 'disabled'

Found by @mind04, thanks.
Merge pull request #1299 from zeha/disabled-defaults

Default 'disabled' to 0/f (vs. NULL) in gsql backends
Merge pull request #1298 from zeha/search-log-throw-error

REST API: report errors in search-log
Recursor: Throttle all queries to a server after N consecutive timeouts (or unreachables).

This feature saves valuable resources by avoiding queries to servers from which we don't receive any answer. It's disabled by default.
travis: add git describe
Merge pull request #1292 from mind04/compiler

fix compiler warning in lua-auth.cc
nit, thanks @jpmens
Travis: build all manpages
Travis: skip downloading LaTeX
Merge pull request #1302 from zeha/faster-travis

Slightly faster Travis builds
Merge pull request #1300 from pmca31/master

Recursor: Throttle all queries to a server after N consecutive timeouts (or unreachables) - thanks to Paulo Anes
Add per-rrset-comments
JSON API: Catch wrong container types

Avoids an assert/abort in rapidjson.
Travis: Add travis_retry for rubygems operations

As per http://blog.travis-ci.com/2013-05-20-network-timeouts-build-retries/
and a recommendation from @travis-ci.
Merge pull request #1301 from zeha/comments

Add per-rrset-comments
fix i386 compile, thanks @zeha
add additional levels of ents (auth and unauth) to the insecure delegation ent test