bump version to 20170112

Merge pull request rbenv#1039 from rbenv/240

added definition for Ruby 2.4.0

Merge pull request rbenv#1024 from rbenv/add-ruby233

Added definition of Ruby 2.3.3

Merge pull request rbenv#1019 from rbenv/update-latest-releases

Added 2.2.6 and 2.3.2 definitions

Merge pull request rbenv#995 from rbenv/use-archive-links

Use google code archive urls for REE, Fixed rbenv#991

ruby-build 20160602

ruby-build 20160426

ruby-build 20160330

ruby-build 20160228

ruby-build 20160226