Added efficient deep path-based lookup and removed legacy code comment.  Updated self.asset database lookup to lookup each time self.asset is requested—store the result in a local-scoped variable for efficient access.
Added efficient deep path-based lookup and removed legacy code comment.  Updated self.asset database lookup to lookup each time self.asset is requested—store the result in a local-scoped variable for efficient access.

WebCore should be updated to allow the root node to be instantiated on each request, which would alleviate the requirement to re-load the asset on each attribute access.

marrow/contentment,marrow/contentment