Log Message:
net/yaydl: update to 0.7.0

pkgsrc: Fetch source from main repository and not from github mirror. This will
avoid missing updates again due to non-mirrored releases.

0.7.0
-updated dependencies, added new -k flag. Fixes #5

0.6.8
-trying to circumvent new WatchMDH structures (yet incomplete)

0.6.7
-Now that we use the new YouTube API, the need for cipher decoding should be a
 thing of the past.