Revert "Revert "Script que cria thumbnails para imagens antigas""

This reverts commit dfd7a7c819792f452192e81c2b92e097ef2b0894.
Revert "Revert "Eliminando reload=True""

This reverts commit 760610c5674989003f80f668965d4f56535fcb22.

Conflicts:
	models/db.py