Ryan Bianchi

adds a button to the charts page to search from the oldest transaction. Resolves half of issue #134

Resolves Issue #133 * fixes `api/balance` to only show accounts with `show_on_dashboard=True` * creates `api/balance` to show all accounts regardless of `show on dashboard` * adds 'show all accounts' checkbox...

The goal here is to resolve #144, and ensure that there's some general validation on all transaction creation, regardless of api/import/ui creation. This will expose the following errors on transaction...

If you create transactions from other sources, such as the REST API, it's kind of anything goes. There's some rudimentary validation, but having it in the view layer keeps it...