v1.4.5 release - now also on F-Droid

Mitch v1.4.5 contains only minor bugfixes. The main reason for this new release is fixing an issue which prevented the official F-Droid build server from picking updates past v1.3.9 (which was released months ago…). Now F-Droid should get the latest versions of Mitch with minimal delay.

• Opt out of WebView Google Analytics
• Fix browser crash when looking at a game which was claimed but has no purchase price
• Fix crash when checking updates for games with external download links
• Add new UI for Session APK installer (which might become the default installer for most Android devices since the default/native installer seems unstable)