Made NPAPI SDK friendly to nixysa
Made NPAPI SDK friendly to nixysa

This just involved not overriding the NP_Initialize signature with the
wrong one on OS X systems.  Arguably, I should've been doing this from the
get-go, but I didn't want to modify the NPAPI SDK if I could avoid it.

AlexSc/HelloWorld,AlexSc/HelloWorld,AlexSc/HelloWorld