DynamoDS/Dynamo — pull request #1331 by sharadkjaiswal (2014-03-20 12:19:17+00:00)
Title: Fixing IsVisibleInDynamoLibraryAttribute handling for hiding nodes.

- FunctionDescriptor class has a property IsVisibleInLibrary, so that if a method with
IsVisibleInDynamoLibraryAttribute is imported it's not added to library view, but files
with this node can still be opened in Dynamo.
- SearchViewModel don't add function descriptors with IsVisibleInLibrary property set false.
- DynamoLoader don't add nodes with IsVisibleInDynamoLibraryAttribute to SearchViewModel so
they are not present in library view.