CMS-2478 Handler for get content as node

 Fixed all get-operations, at least the most important ones. A lot of stuff still missing, like icons, attachment etc.
CMS-2653 populate content with hasChild when fetching as Node
CMS-2654 Handle rename content in node
CMS-2663 Create Content*Service and remove all usage of contentDao
CMS-2667 Populate node with site and page-info
 CMS-2663 Create Content*Service and remove all usage of contentDao

 More cleanup
 CMS-2663 Create Content*Service and remove all usage of contentDao

Removed old stuff