update rack to 1.5.2 and explicitly specify if with jruby to make sure same is used
update MRI servers and do not auto-require them + put the in a logical (server) group
do not auto-require torqbox server and put it in a logical group
there seems to be no need to ruby-zip and zip-zip gems
readme notes on updated version numbers
update the json gem to it's latest
update servers for rails and move them into a logical group + cleanup unused gems
update rails to the latest of 3.2.x (for now)
update ar-jdbc and use a single database.yml for MRI/JRuby + explicitly declare drivers

very necessary esp. since 1.2 was not 100% rails 3.2 compatible 
and AR-JDBC 1.3.x is compatible with latest rails (4.x) as well
update dependency versions in the (rails) README
update servers (and rails) and move them into a logical group + update ar-jdbc

... and use a single database.yml for MRI/JRuby + explicitly declare drivers

very necessary esp. since 1.2 was not 100% rails 3.2 compatible 
and AR-JDBC 1.3.x is compatible with latest rails (4.x) as well
update dependency versions in the (rails-stripped) README
Merge pull request #872 from kares/ruby-updates

ruby (and jruby) updates for rack/rails suites