compareAbs: handle infinities and NaNs
compareAbs: handle infinities and NaNs

jtobey/javascript-bignum,angeni8/javascript-bignum,jtobey/javascript-bignum,jtobey/javascript-bignum,angeni8/javascript-bignum,angeni8/javascript-bignum,jtobey/javascript-bignum,jtobey/javascript-bignum,angeni8/javascript-bignum,jtobey/javascript-bignum,angeni8/javascript-bignum,angeni8/javascript-bignum