Reorganized the todo list with categories.
Reorganized the todo list with categories.

KaranDagar/crystalvc,SoftwareEngineeringToolDemos/FSE-2011-Crystal,brunyuriy/crystalvc,KaranDagar/crystalvc,SoftwareEngineeringToolDemos/FSE-2011-Crystal,SoftwareEngineeringToolDemos/FSE-2011-Crystal,brunyuriy/crystalvc,KaranDagar/FSE-2011-Crystal---old,KaranDagar/FSE-2011-Crystal---old