Adjust documentation for the configurable tmp directory used for
transcoding so nobody shoots themselves in the foot and causes /tmp to
have its permissions changed...

PR:		194120


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@369936 35697150-7ecd-e111-bb59-0022644237b5
Switch from py-imaging to py-pillow


git-svn-id: svn+ssh://svn.freebsd.org/ports/head@369937 35697150-7ecd-e111-bb59-0022644237b5