LifterLMS Stripe Version 4.2.0

July 5, 2017

Enable LifterLMS 3.10 compatibility to allow students and admins to switch the payment method associated with their recurring subscriptions to courses or memberships
Fix issue preventing checkout when a saved card is selected due to new card fields not being properly disabled
Update Stripe API Version to latest (2017-06-05)
Added filter to allow customization of the API version where needed: llms_stripe_api_version
Fix typo on pot file location (from “l18n” to “i18n”)