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Merge pull request fedora-infra#24 from fedora-infra/fedmsg-updater

fedmsg-based cache updater

Remove confusing login button and fix python-memcache import

Update spec, remove comments

Upgrade version in spec

Escape certain possibly user-provided strings fix fedora-infra#13

remove git merge conflict messages

Merge pull request fedora-infra#12 from fedora-infra/develop/migratemc

Migrate to python-memcache

Clean up the code and clarify comments