[bug fix] TDIS-6520 - access property of undefined in contact.clone
update version info from 2.1 to 2.2
Merge pull request #260 from DonnaWuDongxia/next

[bug fix] TDIS-6520 - access property of undefined in contact.clone
[bug fix] TDIS-6435 - change return type of calendar.addChangeListener
Merge pull request #261 from DonnaWuDongxia/next

[bug fix] TDIS-6435 - change return type of calendar.addChangeListener
[ApplicationControl] fix bug for data attribute of ApplicationControl

* The value of attribute of ApplicationControl only can be array
[ApplicationControlData] fix bug on attribute data of ApplicationControlData

* the value of attribute data of ApplicationControlData should only
  be array
Merge pull request #262 from xuzhang/dev

fix bug TDIS-6430
added onremoved listener check