[ ] Modify the README in popcorn editor to explain the change from popcorn.webmaker.org - or link to a blog post doing just that. Also link to the last stable release tag of popcorn maker - v2.1.41
[ ] replace master branch with popcorn-editor branch
popcorn-editor is the future of Popcorn Maker. As such, we shall take the current contents of https://github.com/mozilla/popcorn-editor/tree/master and make that the current master branch here.
TODO: