UI should remember last user setup.

For example on the "File Status" page, when I changed the combo selection from `all files, sorted by file status` to `Modified files, sorted by file status`, it works for the running session only. When restarting the app, it resets the combo selection to `all files, sorted by file status`..

That's just an example but this also applies to split window positions among others.

So question is, would it be possible to serialize the UI positions/size/selections so that we can pick up work exactly where we left it off last time we ran SourceTree ?