youtube-dl 2013.12.11.2

Closes #25139.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
ffmpeg: don't apply patch to HEAD

Fixes #25134.
typesafe-activator 1.0.9

Closes #25143.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
mplayershell 0.9.2

Closes #25135.

Signed-off-by: Jack Nagel <jacknagel@gmail.com>
curl: remove outdated keg-only rationale

Closes #25127.
bison 3.0.2
Simplify prefix test