Allow Bank Account In Distribution
- Adds the non-distributed amount as a possibility for a completed survey.
- Adds the survey non-distributed to the checksum.
- Adds a check to ensure that the distributed and non-distributed share the same currency.
- Adds populating the non-distributed amount to the budget file.
- Removes the reconciled account that couldn't happen via the GUI, i.e. an empty reconciled bank account.
Closes #75 (closed)