CI: Prepare release 'v1.3.0

CI: Prepare release 'v1.2.1

CI: Prepare release 'v1.2.0

CI: Prepare release 'v1.1.2

Merge pull request BetterDiscord#223 from BetterDiscord/development

Merge development

Merge pull request BetterDiscord#221 from BetterDiscord/development

Update version number

Update links and add workaround

Merge pull request BetterDiscord#11 from BetterDiscord/install-functions

Add install functions and prepare for distribution