Log Message:
Update ns-flash to 9.0.31nb1:
    - Add a nspluginwrapper option (enabled by default on non Linux x86
      platforms) which pulls in nspluginwrapper and libflashsupport, and
      enables a INSTALL script which enables the plugin wrapper

Copy of note in options.mk:
# XXXX: If nspluginwrapper is enabled and this package is installed after
# firefox (or similar) it will install a system wide wrapped plugin into
# @PREFIX/lib/<browser>/plugins. If it is installed before a browser
# it will install a plugin for the current user in ~/.mozilla/plugins/
# or similar. This is inconsistant and potentially confusing.