Merge pull request #1 from wal31cr/master

added uml
Merge pull request #4 from wal31cr/master

agr clases
agr clasesII

restante solo clase prueba
agr clases 3

:33333
Merge pull request #7 from wal31cr/wal31cr

pull_to_master_agrclases3
Merge pull request #8 from wal31cr/master

masta_to_pablo