Use model::history::time_series instead of property::link.
Allow multiple storage_types in model. Replace boost::any in storage classes by masked(_base). Serialize links pointer_map_storage via data map, instead of the link object.
Fixing bugs. Runs without qtgui.
Cosmetics
Merge remote-tracking branch 'origin'
Refactoring.
Use model::Root instead of model::History.
Call per storage-type functions using variadic parameter expansion.