[BUGFIX] Remove hardcoded http:// from Youtube MediaRenderer

The YouTube MediaRendere uses http what leads to problems on https
sites.

This patch removes the "http" now the iframe is rendered with
src="//www.youtube.com/embed/....

Change-Id: I9b6342372713a614c28e70afc41770aebb136a5a
Reviewed-on: http://review.typo3.org/33202
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>
[TASK] Copy datetime if translating a news record

If a news record gets translated, the datetime is now copied
to the new record.

Resolves: #61613
Change-Id: I4dd0744876e6ed2d2aced0d8a2fbf25a3426544c
Reviewed-on: http://review.typo3.org/33280
Reviewed-by: Georg Ringer <georg.ringer@gmail.com>
Tested-by: Georg Ringer <georg.ringer@gmail.com>