Setup for Synchronization to Work

1 - Open values > strings.xml and edit the field: sync_url
2 - Overwrite it with the API URL that will return Abstracts.
3 - If a change in timestamp parameter appending is required, open Abstracts.java and edit line 344.

For GCA-Web, the example API URL with timestamp is:
127.0.0.1:9000/api/conferences/2311a932-1e89-4817-b767-a18f4a0b879f/abstracts/2015-07-09T08:24:50.833Z

Note that the time when URL will be called is appended at the end of URL after abstracts/which in this case is 2015-07-09T08:24:50.833Z

This API feature is not yet made available on GCA-Web Repo but is available on separate branch. For Reference, see: https://github.com/shumail92/GCA-Web/commit/171e7ce30677437381aec22d35040621092fc915