Safety check: scalar <= subgroup order

[bellesmarta]

iden3js/src/crypto/babyjub-utils.js

Lines 60 to 62 in c284479

	if (scalar >= babyJub.p) {
	throw new Error('scalar generated larger than subgroup');
	}

If this instruction is checking that the scalar generated is less or equal than the order of the subgroup, then babyjub.p should be replaced by babyjub.subOrder (you can check both parameters at https://github.com/iden3/circomlib/blob/master/src/babyjub.js).