Upgrade ndoejs plugin to level of a new runtime. Original, nodejs plugin is a variant of X runtime. But, now, I think it had better a new runtime that reuse code of X runtime. It would be easier to maintain.

SUBDIRS = src include tools examples inkscape
pkgconfigdir = $(libdir)/pkgconfig
pkgconfig_DATA = libmbfly.pc
EXTRA_DIST = libmbfly.pc.in Doxyfile README.h

if NODEJS
  SUBDIRS += nodejs
endif