2023-08-12 Pandora Plugin v2.12.2 Update

[truckershitch]

Version 2.12.2

Fixes

• If there were other track types in the Volumio queue (local MP3 tracks, data from other plugins, etc.), the Pandora tracks would not expire when another Pandora track was selected.

Changes

• Readme.md was revised and the manual installation instructions were split off to manual_installation.md.
• Ordering by date was refactored but gives identical results here. Previously, it was based on the stationToken integer field and now is based on the dateCreated field.
• is_active() function added to the Timer class.