A few design changes

A few changes based on feedback from a real designer (@ndxcc) who said:

* I find the overlay of four different elements quite confusing, just
  have text on one image.
* EXPENSEAPP in that typeface all uppercase is a bit scary
* Move the strap line below the name and above the content.. Consider
  reducing the amount of copy or make it easier to read by using bullet
  points.
* Username and password grey boxes down line up.... I'm having OCD fits