- solved contains aliasing problem by defining a separate "conains" for ::xotcl::Object - make the serializer less object system dependent - make slottest regression test work with xotcl2 objects
- changed version number from 2.0.0a to 2.0.0 to avoid problems with package require - found crashes in deletion order (when tcl implicitly deletes xotcl objects), introduced temporary compile flag OLD_DELETE