Update models.py
Update wrappers.py
Update models.py
Create simple_math.py

Template filters to permit simple math operations in Templates, while having the ability to round it to an arbitrary precision
Update basket_content.html
Create styles.css
Update base.html
Update quote.html

price displayed per item, added (min) alert to price.
Update styles.css
Update styles.css

Headers where overwritten.. Why?
Merge pull request #7 from theimip/other-fixes

Other fixes