[#855] Pagination support for data > monitoring tab
[#858] Fixed
Merge pull request #860 from akvo/bug/858

[#858] Fixed
Merge branch 'master' into develop
[#855] Resets the `since` property when moving between tabs

* If you have data in the "Inspect Data" tab, the property `since` gets
  a cursor value. If you move to the "Monitoring" tab, select a survey
  group and click the "Find" button, the cursor from the "Inspect Data"
  query is used, resulting on an error
[#855] Refactor based on feedback from @iperdomo
[#866] code refactor
Merge pull request #862 from akvo/feature/855-missing-pagination

[#855] Pagination support for data > monitoring tab
Merge pull request #867 from akvo/issue/866-code-cleanup

[#866] code refactor
[#869] Use Locale.US in S3 payload's date
Merge pull request #870 from akvo/issue/869-locale-date

[#869] Use Locale.US in S3 payload's date
[#876] Expose submitter name
Merge pull request #877 from akvo/issue/876-submitter-json

[#876] Expose submitter name
[#878] Fix inexistent surveys check

* Refactor unused code (survey version Map)
[#880] Implement timezone rest service
[#880] Clean up code
[#880] Add seconds to the time format
[#881] Questions are now mandatory by default
Merge pull request #882 from akvo/issue/881

[#881] Questions are now mandatory by default
[#878] Check null survey group ids