First commit.  Added Items.py to have Item as a basic object to build a todo list
todo.py can read now read in tasks form list.todo and return
a list of these tasks
All functions except sort now work.  This works as a very simple todo list manager.
Easiest to use if todo is aliased to "python3 todo.py"
Added the ability to run from anywhere using the same list.todo file
Added to .gitignore to ignore list.todo file
todo now checks is list file exists, and creates one if it doesn't
Now you can delete all finished items by typing in all instead of task number after calling todo delete