This commit was manufactured by cvs2svn to create tag'v1_1_Build_1005'.
implementation of dwg 12, 13, 14.
This commit was manufactured by cvs2svn to create branch 'v10'.
Actualizado desde el HEAD.
Refactoring general para evitar dar tantas pasadas en la carga, y para incrementarla legibilidad del codigo (demasiados if-else-if en vez de usar polimorfismo)