Description is todo
- Basic Account-System with Email/Password login
- Expenses are listed in a feed
- Expenses can be removed from the feed
- Expenses can be added to the feed
- Humanized time-stamps
- Amounts rendered in custom currencies
- Expenses can be shared between two users
- Sum of shared expenses is calculated
- Expenses are split between marked users
- Access control for API operations
- Settings GUI for account