Don't create new Threads while using EventMachine.
Don't create new Threads while using EventMachine.

Use EM.defer instead in order to use EventMachines internal work queue
and thread pool. This change was made in the hope of fixing the Ruby
interpreter blowup on CI and occasionally on development machines.

barthy1/bosh,barthy1/bosh,barthy1/bosh,barthy1/bosh