Modified the ws interface to be multi-threaded. The number of threads is currently hard-coded at four. Next step is to take the thread count as a start-up parameter.
orlyi: Make JumpRunnable catch and rethrow exceptions

Previously it just let them fly by and straight into the fiber
schedule which would result in badness.
util/error.test: Disable the interrupt test because it sometimes gets stuck forever.
Merge pull request #125 from cmaloney/error-test-retry

util/error.test: Disable the interrupt test because it sometimes gets stuck forever
Merge pull request #124 from cmaloney/jump-runable-rethrow

orlyi: Make JumpRunnable catch and rethrow exceptions
Added --num_ws_threads as orly command-line arg.
Merge pull request #126 from JasonL9000/master

multi-threaded ws interface