Updated PAMM to v3.1.0

Feature: Settings Menu
- Language
- Default tab
- Verbose Log
- Debug Mode (extra logging)
Feature: PAMM remembers last Sort/Filter setting
Feature: Log
Feature: Online/Offline detection
Feature: PAMM & Mod localisation support (English, French, Dutch,
German)
- All PAMM UI except logging
- Mod Display Name & Descriptions
Feature: Custom Mod Icons
Feature: Mod Like counts (from forum post)
Feature: Sort by Likes
Feature: Misc UI Layout & formatting changes, mostly to accomodate
localisation
Bugfix: files are now written in UTF-8