Size/IOPS should be positive_integers (#761)
Size/IOPS should be positive_integers (#761)

This isn't 100% correct, only because positive_integers allows for
a value of 0, but changing that functionality seems like it'd break
things elsewhere.
johnctitus/troposphere,7digital/troposphere,cloudtools/troposphere,pas256/troposphere,pas256/troposphere,ikben/troposphere,ikben/troposphere,johnctitus/troposphere,7digital/troposphere,cloudtools/troposphere