changed unit tests including attribute testing
changed Budget to ActiveModel, defined and used integer_accessor
cleaned up css file
deleted custom.css file
fresh start, removed all user/session files, specs and helpers
edits to what text the feature test should show
changed index file to include display of result (instead of separate show page)
edited setting budget spec to reflect verbiage used on index
changed text_fields to number_fields on form
minor style change for display