hohlraum/gdsCAD — pull request #8 by mabl (2014-05-06 10:13:18+00:00)
Title: Track references and normal elements separately in Cell

When building the dependency tree, we currently need to go through *all* elements of a cell,
even though we are mostly only interested in the references.

This commit saves the references and elements in separate lists, resulting in a potentially
huge speedup during save.