Refactoring : Frequently used functions to make a static function in Utils.
Modify : Save the date in the database from one month value
Previous 2014-00-01 -> January 1, 2014
Currently 2014-01-01 -> January 1, 2014
Because the date for the operation of sqlite
ADD : When the month changed, update the ToDo List.
Success : Print the complete list and incomplete list
Success : Registered item within 7 days show and 7 days deadline to show the item.
Success : All other conditions of the ToDo list itmes request success
Create : Make Custom View class for Visualization
Success : Setting two Spinner Listener
Success : Get ToDo count for Visualization
Modify : when adding a todo item, Solve The problem ToDo_Deadline_date is null