"M" button is using the ishViewportRange

[bmuenzenmeyer]

I am using Pattern Lab Node v3.0.0 on Windows, with Node v8.9.4, using a Gulp Edition.

Expected Behavior

Hittin the "M" button in Pattern Lab's UI should set a viewport size within the range defined within "m" below

  "ishViewportRange": {
    "s": [240, 500],
    "m": [500, 800],
    "l": [800, 2600]
  },

Actual Behavior

Uses "s" values. styleguide.js

  // handle medium button
  function goMedium() {
    killDisco();
    killHay();
    fullMode = false;
    sizeiframe(
      getRandom(
        minViewportWidth,
        config.ishViewportRange !== undefined
          ? parseInt(config.ishViewportRange.s[1])
          : 500
      )
    );
  }

Steps to Reproduce