Remove the URL from the Source0 line.

The git tags are sort-of shared with fedup, so it's easier to just
remove the URL from the spec file than to make a release on github with
a clean name. And the source file is in the SRPM anyway so who cares.

Resolves: rhbz#1056730
fix UnboundLocalError with fedup --device

The Great Denaming accidentally made 'fedup.media' and a local variable
named 'media' collide. Rename the local variable to fix that.

(cherry picked from commit 2c723f7aab47b6b6cf21d12a7962f15f50174f07)

Resolves: rhbz#1056717
New version 0.7.6