Adds internal property and tracks it's dirty changes to the ContentTypeBase - HasPropertyBeenRemoved.
Fixes: #U4-1942 - ensures content xml cache is refreshed even across servers when a property is removed or when the alias is changed.
refresh content cache (and fix the unpublishing too since that logic wasn't correct)
Adds DebuggerDisplay support to ContentBase and Entity for better debugging info.
Adds new internal publishing methods to support publishing all children or only children previously published. This also adds new support
for getting a published result back even with bulk publishing.
Updates the publish dialog with new code and to use the new API based on issue #U4-1669.
Adds UmbracoUser property to AuthenticatedUmbracoController, Adds all common properties to the abstract UmbracoController.
Changes the legacy Document to allow content cache to be automatically refreshed (based on events)
Moved getting an IProfile to an extension method, as its not commonly used.
Removing dependencies in ContentService, so the Services and context can be moved to Core proj.
Implementing Template repository to use both filesystem and db.
Adding the PropertyEditor model as internal to slowly adopt it using a slightly different model approach then in v5.
Minor refactoring of IEntity/Entity.
Adding some notes and small change to IContentBase, PropertyValues and the ability to set property values with an anonymous object is shared for Content and Media.
