Add setMonth to Collection.

Signed-off-by: johnmave126 <johnmave126@gmail.com>
Add query difference in day for helper.

Signed-off-by: johnmave126 <johnmave126@gmail.com>
Beautify controller.

Signed-off-by: johnmave126 <johnmave126@gmail.com>
Add CalMonth widget(The upper right part).

Signed-off-by: johnmave126 <johnmave126@gmail.com>