Merge from vendor branch TNF:

Merge from vendor branch TNF:
Import gecko-mediaplayer-1.0.0 as multimedia/gecko-mediaplayer.

Gecko Media Player is a browser plugin that uses GNOME MPlayer to play media in
a browser.  It should work with all browsers on Unix-ish systems (Linux, BSD,
Solaris) and use the NS4 API (Mozilla, Firefox, Opera, etc.).  Gecko Media
Player is in heavy development, but I wanted to get some code drops out there
so that people can start using and testing it.