v0.1.0

Additions:

* Add `]u` and `[u` mappings to move to the next and previous unfinished
  to-do.
* Allow ftplugin mappings to be disabled by setting `g:no_plugin_maps`
  or `g:no_todo_maps`.
* Commands now support dot-repeat via repeat.vim.

Fixes:

* Don't modify the search history when running commands.