[EngCom] Public Pull Requests - 2.2-develop

Accepted Public Pull Requests:
 - magento/magento2#12951: [Bug] Correctly construct Magento\Framework\Phrase (by @punkstar)
 - magento/magento2#12946: Respect "Learn More Link" in Recently Viewed Products widget options (by @JeroenVanLeusden)
 - magento/magento2#12931: Display scroll bar of admin store switcher in OSX computers. (by @jalogut)
 - magento/magento2#12857: Update progress.phtml (by @jonashrem)
 - magento/magento2#12887: Remove unused if statement in order invoice save (by @JeroenVanLeusden)
 - magento/magento2#12845: Add missing preference for ObjectManager\ConfigInterface in integrati… (by @schmengler)
 - magento/magento2#12768: magento/magento2: Missing ext-bcmath dependency added (by @Mobecls)
 - magento/magento2#12401: Correctly set payment information when using paypal (by @therool)


Fixed GitHub Issues:
 - magento/magento2#12844: "Cannot instantiate interface Magento\Framework\Interception\ObjectManager\ConfigInterface" error in integration tests (reported by @schmengler) has been fixed in magento/magento2#12845 by @schmengler in 2.2-develop branch
   Related commits:
     1. 50ffc6ac

 - magento/magento2#11885: Magento 2.2 Paypal Can't Accept Checkout Agreements Before Routing to PayPal (reported by @Silarn) has been fixed in magento/magento2#12401 by @therool in 2.2-develop branch
   Related commits:
     1. ba0472f2
     2. 48923e1c
     3. 774cb4c6
     4. 12145bca
     5. 7bdb9215
     6. 70f5e386
     7. 92f620f8
     8. 1c7123fe
     9. 9d5fa49f
     10. a35b4686