[what] implement show-lunar-calendar setting and integrate into UI
[what] fix bug: "聲音"設定 改成 "鬧鈴"設定
[why] design
[how] as what
[JIRA] https://herxun.atlassian.net/browse/HAPPY-383
[what] fix-bug: 在iOS 5裡編輯排序城市順序 crash
[why] NSIndexPath:indexPathForItem:inSection是iOS 6的 iOS 5沒有
[how] 改用NSIndexPath:indexPathForRow:inSection
[JIRA] https://herxun.atlassian.net/browse/HAPPY-403
[what] update ringtone table header layout