Fixed #27

Todo

[x] Fix wording in price feature
[x] Fix colours to use existing variables
[x] Fix spacing in between columns to look more like wireframe Ben and I talked about
[x] Fix spacing above and below the price table
[x] text-align left the pricing header
[x] Add call to action button for each column
[x] Make the buy now button in the about section bigger
[x] Update pricing as per fake mock up in #27
[x] Use fat fonts for price

benmort / rciceberg