title: resize nested and imported svg with svg.js
body: <p>heres a pen of what i'm trying to do:
  <a href="http://codepen.io/amcc/pen/RVVRPX/" rel="nofollow noreferrer">http://codepen.io/amcc/pen/RVVRPX/</a>
  (simplified code below too)</p>
  
  <p>i'm importing raw svg, then nesting it - as this is needed to allow it to be dragged. I want to be able to rescale the svg, whats the best way?</p>
  
  <p>line 12 shows  me trying to use size() which isn't doing much</p>
  
  <pre><code>var rawsvg1 = '&lt;g&gt;&lt;path d="M265.8,171.5V49H297v122.5H265.8z"/&gt;&lt;/g&gt;';
  var draw = SVG('drawing').size('100%', '100%');
  var groupContainer = draw.nested();
  
  var group1 = groupContainer.nested();
  group1.svg(rawsvg1);
  //change group1 attributes
  group1.size(50, 50);
  </code></pre>