- Use a single pipe rather two pairs

It uses --mmsh-proxy=xxx or http_proxy environment variable (basic
authentication has not been tested).
We may want to reuse --http-proxy from http instead (and so we will have to
move the option out of http.c)

Fixed VLC_META_NOW_PLAYING update.

Completed RESET command support.
Updated user agent to "NSPlayer/7.10.0.3059"

 mozilla: don't hold any reference to root object to prevent ownership issues on plugin destroy, just create it and throw it to the wilderness

rss.c: Using [19378] (visible region persitence in freetype font renderer), only display one line of text if the font size option was set.