Exercise for dragging parabola
Add validator and correct equation
First hints with Show Me buttons
Finish hints
Make suggested changes
Improve hints
Add comma
Replace buttons with links
Remove darts exercise
Exponents with postive and negative bases
Move function for getting tool properties out of exercise and into utils
Start copying angle exercise
Hints for copying an angle
Get valid validator
Remove debugging
Allow straightedge to be non-extended
Add copy line segment exercise type
Improve hints
Parallel line exercise
Function for finding a compass with given properties