Drop account and bank_account partials and use from has_accounts gem.
Implement tagging for accounts.
Make invoice form views robust against missing accounts.
No need for generic invoices#new action.
Update has_accounts gems.
Update some gems.
Refactor invoice/line_item accounts to use tagged accounts.
Drop debit_invoices#update custom action.
Return 1 as Invoice#direct_account_factor if there is no direct_account set.
Add account tags to de-CH local seed.
Add comment to nl-NL local seed.
Add account tags to nl-NL local seed.
Add migration to set default account tags.
Merge branch 'account_tags' into staging