Add missing return statements

[anders-advisa]

The nan update branch seems a bit messy, but from what I can gather some tool was used to replace all occurances of NanReturnValue() with info.GetReturnValue().Set(). The problem with this is that the NanReturnValue() macro in nan 1 actually returned from the c function, while the replacement doesn't.

In a lot of cases this library did something like this:

if (condition) {
   NanReturnValue(something);
}
NanReturnValue(something_else);

Which was replaced by this:

if (condition) {
  info.GetReturnValue().Set(something);
}
info.GetReturnValue().Set(something_else);

So the JS return value is always set to something_else before returning from the c function.

The solution in this branch is not ideal, but seems to work.

[Sannis]

@anders-advisa good catch, thanks!