Move notes out of init-org.el
Clarify the purpose of org-exec and reformat
Move org-present configuration to use-package
Move org config stuff to use-package
Various tiny changes
Start attempting to use req-package
Get rid of commented TextLint stuff

TextLint is pedantic and prescriptivist and I'll have no part of it
Improve my usage of use-package
Move Org slideshow export stuff to use-package