got rid of Visitor design pattern
first try to make NetworkSyncService.java reasonably stop-able, first successful PUSH
* NetworkSyncService.java still can't be stopped properly
* research needed on functionality of Service or IntentService
* possible solution: pull Timer out of service, just call IntentService from timer
first PUSH made it all the way from our app to Iron.io
* I'm about to distribute code and see when it brakes to track the original error