Bugfixes and a reworked memory management system. This release mainly fixes bugs. It does not bring new features. However, the memory management system has been largely rewritten. The memory management system is now aware of the "complex" types and knows how to create, destroy, copy, and relocate objects. The release prepares the ground for future features (boxing/unboxing through the Obj type, which will allow several fundamental improvements to both Box and Boxer).
