Update control

swap gstreamer0 for gstreamer1
Merge pull request #3051 from leigh123linux/patch-13

Update control
cinnamon-settings mouse: expand double-click test button so it doesn't
look quite so out of place.  Now it's obviously too big, but at least
it looks like it belongs.  Feel free to improve
menu applet: move recent clear button back to the bottom of the recent list.
It really looked out of place at the top, where I think you should immediately
see all your recent files, not a special button.

I'd like to consider some sort of dynamic clear button (or just a symbolic icon)
in the upper-right corner of the menu, that appears only when you're in the
recent category, and only if there are recent files to be cleared.
menu applet: fix for context menu not being closed when the very next
category selection is recent or places.  Some other cleanup as well.