Release 1.3.0-final

This release adds a minor functionnality (the settings in the 'Configuration' tab are now saved on exit), and the Unix binary now includes support for BSD.

This will be the last release in the 1.x branch, except for bug fixes of course. I'm on my way to dig into the BitTorrent code and the 2.x branch will be a complete rewrite, hopefully with much more functionnalities.