v command to escalate and "descalate" TODOs
v allow any action on any TODO type
- fix highlighting (or just disable cursorline)
- disable search highlighting
- maybe try to clean up the search history after doing something
- use `Ignore` for low priority but have some minor colouring (maybe just the `_`) to distinguish these from completed and deleted tasks


highlight todoUnimportant ctermfg=243


Escalation and "descalation" should be an operator-pending mapping

- Allow ranges in mappings


2020.03.21:
v Add changelog
v Don't save edits in search history
v Add repeat support
v Add license headers
v Add no_plugin_maps support