Automatically return AR connections to the pool in stomplets (TORQUE-1133)
Don't let HornetQ retry failed nodes forever (TORQUE-1139)

Otherwise a portion of all messages published get server-side
load-balanced to this failed node, even though the node is gone. This
basically results in 1/N of all messages being lost until the entire
cluster gets restarted.
Get XA working with newer ar-jdbc versions (TORQUE-991, TORQUE-1135)
Get Sequel working with the newer jdbc-h2 gem
Don't use activerecord-jdbc 1.1.x in integs since it can't work with newer jdbc-* gems
Move cache.rb to torquebox/cache.rb to avoid require conflicts (TORQUE-1140)