Reimplement Reaction Copy button with dialogs to create copies of each metabolite
(Substrates, Products, and Modifiers), optionally in new compartment.
- the new libSBML includes full layout validation, however, an invalid layout is no reason to reject a model, thus downgrade the errors to warnings and filter them.
- handle edge case of graphical item without render information
- catch exceptions thrown by load
- fix for Bug1945: reading of render information without id