2 bug fixes for problems.
Merge branch 'master' of https://github.com/boubre/TutorAI

Conflicts:

	Main/GeometryTutorLib/HardCoded/Problems/ShadedAreaProblems/ShadedAreaProblems.cs
Merge branch 'master' of https://github.com/boubre/TutorAI

Conflicts:

	Main/GeometryTutorLib/HardCoded/Problems/ShadedAreaProblems/ShadedAreaProblems.cs
Merge remote-tracking branch 'origin/master'