* treewide: http -> https sources
This updates the source urls of all top-level packages from http to
https where possible.
* buildtorrent: fix url and tab -> spaces
Xautolock can be used to fire up a screen saver like xautolock after a certain
period of inactivity. The tool probably doesn't belong into misc/screensavers,
but I had no better idea.
svn path=/nixpkgs/trunk/; revision=12305