+ Adds electric alignment of amounts on RET
+ Fixes all of beancount's config (which was running because the package
is called beancount, not beancount-mode)
+ Fixes flood of "invalid face org-level-N" warnings
+ Fixes beancount-electric-currency for appending currency to unlabelled
amounts. Also enables this to fall back to first operating_currency in
document, in available
+ Binds TAB to beancount-outline-cycle on outline heading, otherwise
indent-according-to-mode. No need for completion popup when company
already provides this.