Add bind_host and bind_port

(cherry picked from commit 1f5f79ce887d3517fb8858047598ea15e495214b)
Move into [api] section as doc'd keys don't work

(cherry picked from commit 66b94fdcfef3f9922a7c1673694abc080543a82d)
Merge pull request #25 from Apsu/v4.2.1rc

Merged automatically by jenkins after successful build test