Merge lp://staging/~marcustomlinson/unity-js-scopes/build-fixes into lp://staging/unity-js-scopes

Hey Alex, I had trouble getting things building and running on my machine. I had to make these changes to get it going.

First issue I had was unity-js-scopes-launcher not recognising the scope.ini argument from the ScopeRunner entry in the example. Then I got "Error: No such module: contextify" when node::Start() was hit.

These changes fixed the above issues I was having, but now I'm still having an issue getting the scope running via unity-scope-tool. I'm calling "unity-scope-tool './examples/simple/simple.ini'", but the scope seems to just hang on startup. Running "unity-js-scopes-launcher './examples/simple/simple.ini'", just gives me the node terminal (">"). I looks like the simple.js script is either not even running, or is failing and no error message is being shown.

Sorry for rambling, I hope I'm making sense here.

I'm not proposing that these changes are all sane :p Please have a look through them and let me know if I'm doing anything stupid / if you have any better solutions.

Hmmm, seems I may have jumped the gun here. Sorry. I see that the "simple" scope is calling some functions that don't actually exist in the bindings.

Is this project still WIP? Or do you have some other uncommitted changes hanging around?

Let me know if I can help.

Alex, could you please have a look at this. The aim here is to have unity-ja-scopes link against the iojs and v8 from deps/ rather than searching for system installed versions.