Merge branch 'master' of https://github.com/DonutWorks/ToDo.nut into rft/issue-65
#65 added column and calculated values
#65 add counter column to project and modified create actions of Todos,Histories controller
#65 complete migration and change references in content(History, Todo)
#65 feedbacks have been reflexed(migration local class, counter++ callback)
Merge branch 'master' into rft/issue-65

Conflicts:
	app/models/history.rb
	db/schema.rb
Merge branch 'rft/issue-65'