Not actually implemented yet, just made the rectangle thing to make
future commits easier

Will work on the cropping form within a few days.

This should make it less of a clusterfuck.

allow easy modifications of ffmpeg command line. fixes #23

Try it and see if anything breaks.

And cleaning

Fix tab order, add form/app icon, ignore *.sln from Visual Studio

Don't have time to write the method right now, will do that tomorrow
probably

Tab order is still fucked though, oh well

Added an easy way to add title metadata (fix for #9)

This reverts commit 8f0989cf.

And fixed cancelling of multipass ffmpeg.

Updated screenshot

You guys happy now?

Tell me if I broke everything.

Crashes for me if you put it at anything that isn't 1, but it might work
for you guys.

New screenshot

Might break, be careful.