Check for modified files when starting up

[j-h-a]

Suggested enhancement:

When starting up it would be nice if it could check for added, removed, and modified files (i.e. changes that happened while the program was not running) and upload those changes.

I haven't looked into the existing implementation yet, but one idea for this would be to have a kind of signature file, containing a list of all files and their md5sum (or something). This could be downloaded, checked, compared to the theme directory, and changes uploaded. Additionally this would allow for removed/added files to be compared and synced. When multiple developers sync changes it would get a bit out of date (until they sync their local changes to each other with git). I haven't thought of how to solve that just yet though, perhaps checking if the theme directory is under source control and something involving an extra column in the signature file with the parent commit id, or author information, or something.