Add original price to variant options

	new file:   app/overrides/add_original_price_to_variant_options.rb
	new file:   app/views/spree/shared/_original_price_display_variant_options.html.erb
considerations for variant failing; version bump

	modified:   app/views/spree/shared/_original_price_display_variant_options.html.erb
	modified:   spree_sale_pricing.gemspec
Removed duplicate check for variant

	modified:   app/views/spree/shared/_original_price_display_variant_options.html.erb
Merge pull request #10 from deseretbook/MKNOtnx7-add-price-and-shipping-to-variant-options

Add original price to variant options
Merge pull request #11 from deseretbook/2-3-stable

Merge in 2-3-stable