Fix indentation in README
Mailers now require a from address, so we need to give defaults, using MailMethod.current

Conflicts:
	api/spec/controllers/spree/api/v1/shipments_controller_spec.rb
	core/app/models/spree/app_configuration.rb
Truncate product description when used as meta description

Fixes #2396

Conflicts:
	core/spec/helpers/base_helper_spec.rb
Correct MailMethod usage in mail_interceptor, order mailer and shipment mailer specs
Fix jirafe admin settings styling

Fixes #2733
Move currnet_currency and ip_address helpers to ControllerHelpers::Order, where they're required
Added checked values for the radio_button_tag of currency_symbol. fixes #2755

Fixes #2756
Fix value of back_to_properties_list in en.yml

Fixes #2753
Don't require payment methods if payment isn't required