* Fix a resource leak in LdLibrary.
* Add missing property change notifiers
to ld_diagram_object_{get,set}_storage().
* Don't unref the parameter in ld_symbol_category_remove_{symbol,subcategory}
if it wasn't actually removed from the internal list.
* Fix a cyclic dependency problem in LdDiagram.
This is required for gtkdoc-scangobj. So far it's much like it's been
before, the main differences are that source files are in two directories
from now on and the build process has two stages.
Přemysl Eric Janouch