We use mu4e
Merge branch 'master' of https://github.com/mrvdb/emacs-config

* 'master' of https://github.com/mrvdb/emacs-config:
  Configure to run org-mode from a release branch
  Syntax checking (flycheck)
  Add trello feed
  Provide test function for org is habit
  Add eimp mode
  Add two emacs blogs
  Package has changed name
  Fine tuning my LaTeX template
  Update feeds, describe a bit better

Conflicts:
	mrb.org
Correct some mistakes
Make sure the override has the same name

If we conditionally override something, make sure the thing has the same
name as what we want to call.