added support for load from command line and from inside repl. #23 #24

[jhaynie]

with ♥

[tonylukasavage]

Awesome work. I especially like the remote URLs. I didn't think of that and it will be a really great way to run test cases. There's a few small things I modified this morning, with the following highlights:

• I want the default behavior to be that the .load is actually feed line-by-line through the REPL, even without the delay. This is primarily so that you can use ↑,↓ to go through the history. Plus we don't need to add color coding to understand what's going on, we can just prefix with a prompt as though it was typed, and you'll get to see the return value or each line.
• I'm going to write the loaded code to rl.write as opposed to console.log. The way you have it, the code won't get saved in the readline.history, which is what is used by the save functionality you just merged to output the command history. Plus it will also use the eventing already in place, no need to fore message manually to the server anymore.
• Due to the above, the load needs to be moved after the readline Interface is initialized.