[KK] Display 'Internet' option on page 37

The final option 'Internet' was not displayed properly on the page.  Now it is.
Merge pull request #232 from alphagov/kk_display_internet_option

Display 'Internet' option on page 37
[KK] There is no question 11 on page 24

Controller was expecting a field 'p24q11' which does not exist in the view, and so it was always being saved as null.  No harm done, but better to remove it really.
[KK] Create new meaningful JSON format for export of services

Currently the export function uses a JSON format including the page structure
from the SSP and key names in page-question format. We want the new API to
accept JSON in a more meaningful format that properly captures what the G6
data is about. The new converter here maps existing page-question keys to
more descriptive names, and flattens the structure to get rid of the concept
of 'pages' from the data format.
[KK] Return empty string for null 'lastCompleted' date

When trying to export a draft service that has never been completed the exporter would throw a null pointer because of the null completion date. This will return an empty string for lastCompleted date instead.
[KK] Use new JSON conversion method for listing exports

The listing export method previously used the toString(), which gave a JSON format including the page structure and meaningless "page/question-number" keys.  This uses the new JSON converter which produces flattened JSON with descriptive keys.
[KK] Add cron for testing on QA
[KK] Moar logging