Reference: babel/proposals#19

The proposal has been split for a long time now but we haven't changed it. Now's an opportunity!
There is babel/proposals#16 and babel/proposals#17.

• export-ns-from is moving to Stage 2 (and potentially later skipping the process but irrelevant atm)
• export-default-from is staying at Stage 1 and also having some other changes
• moving the stages is similar to Move plugin-transform-unicode-property-regex to stage 3 #5877
• splitting the package in 2 however means you need to make a new folder for each, etc.

• Comment below you are going to do this (for others to know)
• Read CONTRIBUTING.md
  • at minimum you'll need to run make bootstrap after cloning.
• Check you are on 7.0 branch with git checkout 7.0 and then make a branch off of that to PR
• Join our slack if you haven't already if you need more immediate help or just comment in this issue/PR
• make the changes above