Continuum v2.1.12

Changes since v2.1.2:

• f4fe30c fixed some maintainability issues
• 577c5ac Fixed some Maintainability issues
• 780a128 fixing more maintainability issues
• e7f4fcd adjusted testing of app.go
• 6e0e7dd adjusted testing for updater_test.go
• 0a9a213 Adjusted tests for main.go in versiondump
• 435d868 adjusted more updater.go tests
• c98527d renamed app image png
• 130f298 adjusted testing for updater.go a little more
• 36f80df cleaned up unused code
• 17ac118 adjusted more updater.go tests
• b752aa3 adjusted more tests for updater.go