function isPositiveFinite( x ) {
	return Boolean( addon( x ) );
}
Tests if a double-precision floating-point numeric value is a positive finite number.

@private
@param {number} x - value to test
@returns {boolean} boolean indicating whether the number is positive finite

@example
var bool = isPositiveFinite( 2.0 );
// returns true

@example
var bool = isPositiveFinite( -5.0 );
// returns false