Refactoring CalDay
Refactoring Sample Implement
Footer Support
remove unused code in CalendarView
calendar cell always five row.
add Options auto resize & alwaysSameHeight
calculate contentSize
Change CalendarViewDelegate method name
fix WeekHintView positions

e.g) 2009-02
support four row && start sunday

 e.g) 2009-02
rename AZCalendar
rename `updateCalendar` to `reloadData`

It resembles <TableViewDataSource>
independence grant to `update grid cells`

Although `update grid cells` & reloadData look similar, their update are different.
default gridSize which get from xib size
update interface description
improve viewFromNib
add CalendarView subclass for implements
add iPad implement
add Prefix "AZ"
use width = totalWidth / NUMBER_OF_DAYS_IN_WEEK;