ympd.c: add a break statement for the mpd port argument

Otherwise, passing -p tried to also bind the http server to MPD's port
(which was already in use by MPD...)
add jquery source file

This is to comply with the Debian Free Software Guidelines:
https://www.debian.org/social_contract#guidelines

ympd can still use the minified file, however we need the source files
to be included in the source package.
Merge remote-tracking branch 'jpleau/fix_mpd_port_argument'
Merge remote-tracking branch 'jpleau/jquery'