Lots of style changes. Temporary, faster loading background, integrated flexbox. Stripped down and rebuilt app.scss and application.hbs.
Flexbox for statement container - not sure how it looks yet because database isn't connected.
More small style changes. Need to center title on first page, add background to statements page, change color of breadcrumbs, change post button, etc.
Merge pull request #1 from austint/style

style stuff