Early commit of in-progress loadbalancer using go-lightly.
Load balancer is complete -> ldbal.clj file. Needs to be renamed.
Added gox macro to wrap everything in try/catch

Modified core-test: drain of a synch channel has indeterminate behavior.
On one of my systems it returns all 20 entries; on another it only returns 1.
Modified the test to be non-specific: at least 1.
Adding load-balancer example to run-examples.
Added load-balancer example to run-examples.

Ran multiple tests and seems to work correctly, even under high load.