talk with lars about restructoring
add link to accounts overview page
reorder fixtures
replace the navigation /w ractive
remove navigation region

WIP replace positions index with ractive
replace the position listening and the form with ractive
remove handlebars entirely
specs are green, but view specs had to be removed
some JSHint formatting applied
add backbone.mutators for the transient properties

specifically, totalAmount which wraps totalAmountCents and possibly
currency in the future
no need for mutators
properly handle income/ expense
color money properly
WIP accountCode completion
WIP account selection
WIP fiscalPeriod form
allow accounts to be created dynamically
shorten the labelForAccount definition a bit
when leaving the new position view, destroy unsafed positions
introduce the propertyWrapper