Make Calendar localizable

[1and2papa]

Make calendar localizable by initialize with NSLocale.
Amend NativeCal example to show a localized calendar.

[klazuka]

Maybe I'm missing something, but as far as I know, the calendar is already localized. If you change your iPhone's "Region Format", Kal will use the appropriate language and formatting. Why is it necessary to explicitly pass in an NSLocale object?

[1and2papa]

In some multilingual regions, like Hong Kong, many users use different languages between iOS and apps. They demand in-app language change rather than system-level language change. I know that this approach opposes the iOS localization recommendations but the market really demands this feature. So it would be nice to make Kal to support passing-in NSLocale object and let the developer to choose whether adopt this approach or not.