Add the to_be_emailed field to CashRefunds.
Adding PromotionCode
added get and search for campaigns

Conflicts:
	lib/netsuite.rb
fixed depreciation warnings for be_true be_false to be_truthy and
be_falsey
Adding basic promo code spec
added site categories

Conflicts:
	lib/netsuite/configuration.rb
fixed namespace list (fixes searching)
Add DiscountItem