Fix the server-side part for handling deferred debits
- Fix the locales files, to provide more helpful descriptions for the deferred types, closer to those used on banking websites.
- Fix the balance computation by discarding the card summary operation. This operation is a one-to-many duplicates with all the individual deferred debits, so it should never be taken into account to compute balance.
Client part still needs some work (basically, the same filtering). @ZeHiro maybe you could push it to !622 (merged)?
Edited by Phyks