Tripled default bitrate

No more blurry mess.
File validation

Now checking if input actually exists, and if the name is valid
Added license to project
Fixed a bug that would always tell you the filename is invalid
Now using crop END instead of crop LENGTH

Might break, be careful.
Update README.md

New screenshot
Added threads slider

Crashes for me if you put it at anything that isn't 1, but it might work
for you guys.
Major update, now allows 2-pass encoding

Tell me if I broke everything.
Code purism

You guys happy now?
Update README.md

Updated screenshot
Thread slider set at amount of CPU cores + disposing

And fixed cancelling of multipass ffmpeg.
Fixes trimming when using end times
Added an easy way to add title metadata
Revert "Fixes trimming when using end times"

This reverts commit 8f0989cf1770446bd6095d2684225994e27dd25d.
Merge pull request #17 from nixxquality/master

Added an easy way to add title metadata (fix for #9)
Changed labels, trying to fix tab order

Tab order is still fucked though, oh well
Ugh, I'll fix this tab index stuff later
Now showing correct pass number in output
Default title is now input video filename
Added stub method for turning 00:00 into 00:00:00

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