New deploy

[Michal Novotny]

Hello,

today, we have deployed new copr-frontend 1.120-1, copr-backend 1.103-1,
and copr-keygen 1.68-1.

Changes in keygen and backend are mainly cosmetic (i.e. spelling fixes) but
in frontend, there are quite a few:

- fix build stucking with srpm url/upload resubmitted builds
- .spec cleanup
- move DEFER_BUILD_SECONDS to config values and set default to 80
- show backend log for srpm builds
- fix url to import log
- Bug 1431035 - coprs should check credentials before uploading
  source rpm

Hopefully, this will serve well. Next update will finally fix repo/rpm
download counters.

Best Regards
COPR team