Collaborative Statistics image assets and bug fixes

<h3>Collaborative Statistics image assets and bug fixes</h3>
<p>Added feature image assets for Collab Stats, changed pointer name to finger as it is referenced this way throughout code.  Renamed W&N file to finger.svg.  Three bug fixes for Template detailed below.</p>
<p>Files added:</p>
<ul>
<li>calculator.svg</li>
<li>collab.svg</li>
<li>finger.svg</li>
<li>handset.svg</li>
<li>interactive.svg</li>
<li>interactive_UM.svg</li>
<li>lab.svg</li>
<li>try.svg</li>
</ul>
<p> Fixed bugs with features (.note) implementation and generic note.  Problem with .note parent wrapper class solved due to .note & .feature not being descendant selectors, but simple selectors i.e.  note.statistics.  Fixed, and also fixed bracketing for generic note.  Both are fully functional now, retaining refactoring moving forward.</p>