Fix compiler for new DNode logic

Bump for release

Bump for 1.6.2

Set tag for 1.6.1.

Bump versions for final 1.6.0 release

Bump for RC3

JRUBY-5331: cext dir missing form src dist

Update to jruby-launcher 1.0.4 for JRUBY-5266.

Merge branch 'jruby-1_5' of jruby.org:jruby into jruby-1_5

Bump from 1.5.4 to 1.5.5 because jruby-jars booch