[MPlayer-DOCS] manpage entries for -v, -verbose, -quiet

[Diego Biurrun]

Attila Kinali writes:
 > something i forgot to mention: the manpage
 > entries for -v, -verbose and -quiet should
 > be moved to a general or common options section
 > but there is nothing like this.
 > 
 > IMHO we should have one at the beginning
 > right after the keyboard control

Done, I just added it.

Currently it only contains -codecs-file, -include, -quiet, -verbose.
Please check the descriptions and move any options that also belong in
there.

Diego