Fixeded NaN issue on cart, #136.

* Currency symbol is no longer passed into the formula
* Removed unused doom ID
* Fixed issue where file name was not showing.
* Dialog now has min-height

Signed-off-by: Zane M. Kolnik <zanematthew@gmail.com>
Percent increase no longer shown on front end, #135.

Signed-off-by: Zane M. Kolnik <zanematthew@gmail.com>