Good observation.  As part of my refactoring and clean-up, I moved the `using namespace v8;` statement up into the .h file.  As a result, the explicit `v8::` scope is no longer needed here.

In fact, in the original code, there were a number of additional instance in which `v8::` was still being specified, even though the `using namespace v8;` statement would have already taken care of the correct scoping.