Fix problems with buttons in Testing Mode and added other features
Merge remote-tracking branch 'origin/master'

Conflicts:
	musicTeacher/musicTeacher/forms/EarTrainingPage.Designer.cs
	musicTeacher/musicTeacher/forms/EarTrainingPage.cs
	musicTeacher/musicTeacher/forms/FormTrainingPage.Designer.cs
	musicTeacher/musicTeacher/forms/FormTrainingPage.cs