Added an api
/v1/calendar/all/all

which gives all data facets for a user. An optional updatedSince parameter can be used to narrow this down
-Changed /all/all api to return ConnectorResponseModel to reduce overhead
-Added /{connectorobjecteconded}/all api to return all data for specific connectors or object types
Added generationTimestamp to ConnectorResponseModel
Merge branch 'development' of https://github.com/fluxtream/fluxtream-app into development