13 January 2013, Selyutin Dmitry
  All methods now return pointers.
  All built-in methods now have shorter names.
  object_type is now derivated from base_type.
  The beginning of exceptions implementation.
26 January 2013, Dmitry Selyutin
  Everything was rewritten again.
  Exceptions are now called errors for shortness.
  Support for type casting, overloaded operators, etc.