API
- Content: Summer Splash 2016 class equipment and Seasonal Shop item availability
- Performance: Groups over 5000 members no longer send notifications for new activity
Client
- Feature: Enable Seasonal Shop
- Fix: Force refresh of party page upon create or invite to give more up-to-date information
- Fix: Load completed To-Dos on sync so they don't vanish unexpectedly
- Fix: Only show "Private messages have been marked as read" when relevant (with @Hus274)
- Fix: Use a translatable string for Mana in header