Calculations regarding weight are based on ounces and converted to ounces using :unit_multiplier
No need to also convert the max weight values specified by the carriers. These MUST be represented in ounces given
current :unit_multiplier logic.
Fix issue where shipping methods were not being registered

The 'descendants' method will return an empty array if the subclass files are not loaded first.

Fixes #101
Calculations regarding weight are based on ounces and converted to ounces using :unit_multiplier
No need to also convert the max weight values specified by the carriers. These MUST be represented in ounces given current :unit_multiplier logic.
Merge branch 'max-weight' of github.com:rterbush/spree_active_shipping into max-weight

Conflicts:
	app/models/spree/calculator/shipping/usps/base.rb
usps api name changes fix #103
moving from matching service names (desc) to checking for service codes
in order to achieve this it was necessary to override compute and
retrieve rates from Spree::Calculator::Shipping::ActiveShipping::Base on
Spree::Calculator::Shipping::ActiveShipping::Usps::Base
I added a service code paramter to all the usps classes and made sure
it was the correct id, please refer to this issue for further
explanation: https://github.com/spree/spree_active_shipping/issues/103
use package stock_location rather than global origin for rates
Making address of stock location required
usps api name changes fix #103 moving from matching service names (desc) to checking for service codes in order to achieve this it was necessary to override compute and retrieve rates from Spree::Calculator::Shipping::ActiveShipping::Base on Spree::Calculator::Shipping::ActiveShipping::Usps::Base I added a service code paramter to all the usps classes and made sure it was the correct id, please refer to this issue for further explanation: https://github.com/spree/spree_active_shipping/issues/103

Fixes #105
Merge pull request #105 from mrpollo/2-0-stable

usps api name changes fixes #103
Merge pull request #108 from 3drobotics/2-0-stable

use package stock_location rather than global origin for rates
Merge pull request #99 from rterbush/max-weight

Max weights for carriers should be represented in ounces and not converted to pounds