Refactored out ITemplateAggreagor from IDefinitionManager to simplify dependencies in several scenarios
Fixed problem with doubly-encoded content on parts with EmbeddedParts
Merge branch 'master' of github.com:n2cms/n2cms into xml-storage
Fix a NullReferenceException and add NumericHashtable for efficient lookups by integral IDs.
(XML) Implemented some more save/load logic