Update from upstream repo facebook/create-react-app@master#3

Merged

cloud-walker merged 8 commits into

cloud-walker:masterfrom

Aug 27, 2018

Commits on Jun 23, 2018

Commits on Jun 26, 2018

add react-testing-library documentation/examples (#4679)

Kent C. Dodds
authored and
Timer
committed

Commits on Aug 7, 2018

Fix link to the article about BEM (#4858)

Terbiy
authored and
Timer
committed

Commits on Aug 22, 2018

Use file name whitelist to prevent RCE (#4866)

acdlite
authored and
gaearon
committed
Bump versions
gaearon
committed
Bump release
gaearon
committed

Commits on Aug 24, 2018

Add 1.1.5 release notes
gaearon
authored