Update config.rb use dynamic path to product cache

added defaults[:zilla_path]

add puts Dir.pwd to config.rb

fixing tests and adding contact lookup

need to set rate plans

remove product shouldnt include charges

added add and remove rate plan through amend and tests

removed rate plan name correcttion

fixed setter on new plan in get current subscription

added get current subscription and amend view and controller

fix

iframe should retain values

usage charge should not have quantity

added subscribe to backend

added generate iframe url and payment manager