Add Ruby 2.3.0 dev definition
Merge pull request #694 from deepj/master

Add Ruby 2.3.0 dev definition
1.9.3 builds with performance patches.
Build for 1.9.3-p385-perf.
Build for 1.9.3-p392-perf.
Build for 1.9.3-p429-perf.
Build for 1.9.3-p448-perf.
Build for 2.1.1-perf.
Build for 1.9.3-p484-perf.
Build for 1.9.3-p545-perf.
Build for 2.1.2-perf.
Update hashes, software versions, and URLs.
Build for 2.1.3-perf.
Build for 2.1.4-perf.
Build for 2.1.5-perf.
Build for 2.2.0-perf.