[#497] Cleanup GWT portal code
[#497] GWT survey entry client code cleanup
[#497] GWT code servlet classes cleanup
[#497] GWT Code cleanup removing URL mappings
[#497] GWT client code cleanup
[#497] GWT code cleanup
[#497] GWT code cleanup + TestHarnessServlet class cleanup
Merge pull request #535 from akvo/feature/497

[#497] GWT code cleanup