#23 sort todo items by priority

[jeff covey]

thanks for your work on this project!

would it be possible to sort todo items by priority when importing them from the todo
list? when i open planmyday now, it imports my todos, and i find a lot of unimportant
items at the top of the list and everything i really need to do at the bottom. i then
have to spend a lot of time moving everthing to a more sensible arrangement.

thanks!