Plan.txt

Given a range of dates
Given days of the week that we have rehearsal
Given actors availability
Given which actors are in which scenes

Give back a list of what scenes can be rehearsed each day

-1. Create a program that takes a range of dates and days of the week, and returns a list of all the dates that
 fall on the given days of the week
-2. Given an actor's availability, list that the actor is available on those dates
-3. Given the scenes that an actor is in, list that the scene can be rehearsed on those dates
4. Expand to a list of actors & availability
5. Expand to a list of scenes
6. Add ability to add an actor
7. Add ability to add a conflict on a day of the week
8. Add ability to add a conflict on a specific date