Added controller for lesson plan, and a blank default template.
Fix routing: I will have only two controllers instead of three: the lesson plan entries controller, which will present all lesson plan entries by milestone, and the milestones controller, which presents milestones, and clicking on them will show the entries belonging to that milestone only.
Define the skeleton for the lesson plan milestones controller.
Create lesson plan entry input form.
Implement creating new lesson plan entries.
Implemented display of lesson plan entries, grouped by milestone.
Showing one particular lesson plan entry doesn't really make sense.
Implement displaying the lesson plan entries grouped according to milestone.