np_functions: move instance_loaded flag update to NPP_New()
np_functions: move instance_loaded flag update to NPP_New()

grevutiu-gabriel/freshplayerplugin,Papapashu/freshplayerplugin,grevutiu-gabriel/freshplayerplugin,reuben/freshplayerplugin,reuben/freshplayerplugin,Papapashu/freshplayerplugin,reuben/freshplayerplugin,Papapashu/freshplayerplugin