Minor fixes and bugs

• Ensure data synchronization for media (intermittent bug fix)
• Support installs on low-resolution displays (#434)
• Correctly set advanced disk config warnings (#553)
• Add support to download config over the network (#524)
• Update to latest when the version is 0 (#502)
• Support setting format and version from both YAML and command line (#559)
• Support setting both swupd URLs with single --swupd-url option
• Updated to latest Go-lang linter (#527)