TODO :
- Backup
- Add Postgres / MS SQL support
- Full account name in download ledger statements, etc
- Guide on translations
- Save logged in user and selected account
- Correctly order the main groups
- Pre-write A/C
- Balance sheet should not have Dr and Cr
- Store wzuser in MySQL and remove the dependency on sqlite.

Optional :
- Negative balance highlight
- Income / Expense should have no opening balance
- Theme email entries
- Return to correct URL
- Cash flow statement
- Tooltips
- Optimize
- Reference/Cheque number, name and date
- Cheque printing
- Ledger / Group in downloads
- Group statement
- Dr/Cr separate column in reports