Updates for Spree 2.0 & Making RSpec actually run.
Merge pull request #10 from jdutil/specs

Updates for Spree 2.0 & Making RSpec actually run.
Adding order#promotions_total to order_decorator.rb
Removing tax_cloud from gemspec
Remove comment on requiring spree_promotion_tax in order_decorator.rb
Merge branch 'master' of github.com:bluehandtalking/spree_tax_cloud