title: Is there a way to export rMaps output to image?
body: <p>I'm starting to work with rMaps (following <a href="http://lcolladotor.github.io/2014/02/26/excited-by-willingness-to-help-get-things-done/#.U_vWrKcR03t" rel="nofollow">this example</a>), and it's a great package. I'd like to include the results in a document, either by exporting the result to a .jpeg, .png or other graphical format, or by rendering the output directly into a LaTeX document (using sweave or knitr). However, after searching a lot, I've found no way to do it. </p>
  
  <p>So, the question is: Is there a (preferibly simple) way to export rMaps result (<code>ichoropleth</code>, <code>crosslet</code> and/or <code>Leaflet</code>) directly to an image file (or set of files)?</p>