intentando agregar graficas
agregue graficas

Merge branch 'master' of https://github.com/xblacklotus/PTC

Conflicts:
	includes/notas_Materias.php
resolvi un conflicto con cesar en notas_materias

Merge branch 'master' of https://github.com/xblacklotus/PTC

Conflicts:
	includes/notas_Materias.php