Final dist filename change for JRuby 9000.
Merge pull request #681 from dkoprov/jruby-1.7.17

Add jruby-1.7.17
ruby-build 20141210
Merge pull request #679 from headius/master

Final dist filename change for JRuby 9000.
Add definition of Ruby 2.2.0-rc1
Merge pull request #684 from deepj/master

Add definition of Ruby 2.2.0-rc1
ruby-build 20141222
add jruby-1.7.18
Merge pull request #687 from neojin/add-jruby-1.7.18

add jruby-1.7.18
added definition of ruby 2.2.0
Merge pull request #688 from hsbt/ruby220

Added definition of Ruby 2.2.0
ruby-build 20141225

Closes https://github.com/sstephenson/ruby-build/issues/689.
Update examples to use 2.2.0
Add Ruby 2.3.0 dev definition
Merge pull request #694 from deepj/master

Add Ruby 2.3.0 dev definition
Merge remote-tracking branch 'upstream/master'

Conflicts:
	bin/ruby-build