Ensure that when Neat mutation replaces connection weights they range…

… from -1 to 1

src/architecture/population.js

@@ -97,7 +97,7 @@ const Population = function(options) {
    * @return {Network} A network mutated by the Neat mutation spec.
    * 
    * @todo Remove hard-coded chance thresholds
-   * @todo Consider making this a specialized mutate function: `neatMutate`
+   * @todo Consider making this a specialized mutate function: `neatMutate` 
    */
   self.mutate = function (network, options={ neat: true }) {
     // Just do 1 random, if Math.random() is truly random then it should be equivalent to doing individual "Math.random()"s