Prometheus - Donation and payment store

Changelog for 1.6.3.1

This may be the last version of Prometheus until 2.0 I apologise for the slow loading times recently, the currency conversion API Prometheus was using has been very very very slow recently, and has now been removed

web

1. Removed multiple currencies support due to a verrryyyy slowww currency conversion API
2. Did some various speed optimisations
3. Fixed an issue where free packages wouldn't work
4. Fixed custom amount payments with Paymentwall

lua

1. None

Languages

1. Updated language files to their latest revisions