#1158 Refactoring for retrieving pages
#1158 Changes for future queries, rename methods, remove old logic
#1158 Fixed loading of page data
#1158 Changes for page contents, child contents
Removed unnecessary fetch. Changed parameter type to IList.
@1183: Fixed content not rendering default master page options. Performance optimizations
Merge branch 'dev-1.9.0-1158' into dev