To use this module, make sure that planner-vm.el is in your load path and add this to your .emacs (or _emacs):
(require 'planner-vm)
VM URLs are of the form:
vm://path/to/inbox/message-id
Annotations will be of the form:
[[vm://home/test/INBOX/<E1AyTpt-0000JR-LU@sacha.ateneo.edu>][E-mail from Sacha Chua]]
planner-vm.el does not define any interactive functions or keybindings.