Merge pull request #2 from jsqu99/fix-clone-billing-address

fixes clone_billing_address mass-assignment of tenant_id
Merge pull request #3 from jsqu99/spree_admin_vs_super_admin

renames spree_admin super_admin
Merge pull request #4 from jsqu99/add_super_admin_to_spree_roles

Add super admin to spree roles
prevents repeated adding of admin role