Fixes the example app to use the new CDTReplicatorFactory.

The the CDTReplicatorFactory -start and -stop methods have been deprecated.

Also, the example app now uses the CDTReplictor -startWithError method.
Merge pull request #93 from cloudant/fix-issue-92-update-example-app-with-new-replicator

Fixes the example app to use the new CDTReplicatorFactory.