Issue with Float Type Hint

Merge pull request #13 from lukepolo/lukepolo-patch-2

Fixing issue not having a type hint of float

0.1.4

Fixed issue of not getting the total fees for taxes

Adding Tax Totals Function

0.1.3

Adding a way to get the total tax

Bug Fixes with Fees

Update Cart.php

Adding a default to getFee

Fixes for the Cart

0.1.1

Upgraded cart fee to an object

Alpha Release

0.0.1

Upgraded cart fee to an object