Prevent external monitoring on same screen as application.
Add Upgrade to Help menu.
Add MLT_MOVIT_PATH to generated source-me script.
Fix in & out of shot dragged from playlist to timeline.
Change to Source/Program monitor.

Now, program monitor reflects a playlist if only a playlist project or
the timeline if a multitrack project. Double-clicking a playlist item
opens the shot in the source monitor. This makes it more convenient to
use as a bin for a timeline project. Shift-double-click can seek to a
shot in the playlist.
Switch from videostab2 to vidstab filter.
Update stabilize filter to match MLT change to store results in a file
Add audio loudness filter
Resolve comments from 54facb6fc4e1cddc4e35885222e3161e1db49d3f

* typo
* correct string length math
* whitespace
Resolve comments on 0f2689d64660c6f44c039dae4cfe69bc1a0a5a70

* Replace the current "Normalize" filter
* Rename to "Normalize"
* Remove extra label
* Shorten label
* Fix undo value