Abbr-tag upload on download stats

Added upload stats inside [abbr] on the download stats so both download
and upload can be seen on days the download statistic is visible.

GMOT total upload is always visible, like download.
Improved abbr-tag upload on download stats

Added total upload as well as difference to previously reported stats.
Rewritten code for various improvements

Fixes savers (spaarders) bug, loads faster, easier code maintenance. Of
course I have used existing code from the previous version. 1 april
version has been lost, someone may recreate it as I was uncertain what
it does.
Merge pull request #4 from JochemKuijpers/master

Accepted, thanks for contributing :)