LIB-313 Update
LIB-313 Update

- change release to autorelease in setDeviceToken
- updated setObject: to setValue: while building the JSON
  payload to accommodate nil values.

mikerowan/ios-library,zhangqinghe/ios-library,ipmobiletech/ios-library,mikerowan/ios-library,grosch/ios-library,zhangqinghe/ios-library,grosch/ios-library,jamesstout/ios-library_LITE,mikerowan/ios-library,manuyavuz/ios-library,jamesstout/ios-library_LITE,manuyavuz/ios-library,ipmobiletech/ios-library,zhangqinghe/ios-library,jamesstout/ios-library_LITE,ipmobiletech/ios-library,manuyavuz/ios-library,grosch/ios-library