added 'add budget' feature
added budgets to the navigation
added budgets controller and started fleshing out the spec
fleshed out index specs
added Budget class
working the budgets controller spec...added index and show
working through the budgets controller spec
added BudgetsController#delete implementation
finished making budgets controller spec pass
finished 'add budget' feature
added 'update budget' feature and made it pass
added 'delete budget' feature and made it pass
corrected style issues
added 'add budget line item' feature
added budget items controller
added budget item model
fleshing out the budget items controller spec
finished budget items controller spec
started working on new budget line item form
added budget item presenter spec and class