delete 'rails' - contains rails 2
delete 'css/ stylesheets/ sass/ javascripts/ images/' - contains rails 2 assets
./tools/bin/go.jruby -S gem update thread_safe --no-rdoc --no-ri
delete development-server-new-jruby. will make development-server default to rails-4.
build scripts can now assume ruby 1.9
pom.xml changes - delete old jruby, jruby-rack & bcprov dependencies
delete old assets (css/js/img) usage
delete old runOnAllAgents handler
Merge pull request #805 from srinivasupadhya/delete-rails2

Delete rails2