Squash and cleanup of the following:

- cca085e
  start of import/export

- f816da1
  start of changing stuff until I can get a bundle

- c92adde
  first bundle without errors

- e652dd2
  Bundling works with ts files

- 60fdb25
  meta info in compilation

- 8ccae78
  new build doesn't cause errors on page load as userscript

- 6fa11c4
  work in progress: load userscript in browser and fix bugs

- b15c557
  migrated yotsuba templates to plain js

  the old templates caused some variable be in a wrong scope after
decaffeinate, causing them to be unreadable from the old template

  the old templates caused some variable be in a wrong scope after
decaffeinate, causing them to be unreadable from the old template

- 9d763e8
  update readme

- 924eda8
  added more imports, and now the circular dependencies are haunting me

- ddd2d23
  jsx templates for escaped strings,
  more bug fixed from circular dependencies

- fee484d
  some fixes, clarify jsx

- e1d01d0
  Unpacked extension
  more fixes

- 97d9090
  fixed class on post that caused catalog to appear empty

- 96a2c7b
  A child class that's not supposed to run the parents constructor? That needs a workaround in es6 classes.

- fc06b4e
  changed jsx to make the tests pass

- 7b317b2
  revert archive and banners to json