rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
  - rbx
  - ruby-head
  - ree
  - jruby

rvm:
  - 1.8.7
  - 1.9.2
  - 1.9.3
#  - rbx
  - ruby-head
  - ree
  - jruby

Remove rbx from build as nokogiri doesn't yet work on it
Remove rbx from build as nokogiri doesn't yet work on it

The next release has fixes for this so will enable once a new
release of nokogiri is out.
