in-parallel 0.1.0

I know there are other libraries that do parallelization, but I wanted something very simple to consume, and this was fun. I plan on using this within a test framework to enable parallel execution of some of the framework's tasks, and allow people within thier tests to execute code in parallel when wanted. This solution does not check to see how many processors you have, it just forks as many processes as you ask for. That means that it will handle a handful of parallel processes well, but could definitely overload your system with ruby processes if you try to spin up a LOT of processes. If you're looking for something simple and light-weight and on either linux or mac, then this solution could be what you want. If you are looking for something a little more production ready, you should take a look at the parallel project.