It now takes the --display and --only predicates into account, so that
it never appears to be collapsing single transactions.
There are cases where there are multiple transactions, but the display
or only predicate filters them out, so that if collapse didn't consider
this, the user would wonder why a single transaction was being collapsed
-- since they'd never see that collapse saw more than two.
These fully generalize the previous --payee-as-account and such options,
which, for example, is now implemented to be the same as saying,
"--set-account payee".
To help with gathering specific reports:
- --payee-as-account copies the entry's payee field to the account,
allowing the subtotal report to show unique payees for each period.
- --comm-as-account copies the transaction's amount's commodity to the
account.
- --code-as-account copies the entry's code to the account
Also created aliases for some of these options, for conistency's sake:
- --commodity-as-payee is now an alias for --comm-as-payee
- --commodity-as-account is now an alias for --comm-as-account
For example, in period reports null transactions are only generated for
empty periods if --empty is used. Otherwise, the presence of such
transactions can get confusing.
