Updating Sturmfels session description and bio.

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                <div class="session">
                        <h3>Rock your Emacs</h3>
                        <span class="label label-default">Room 32-141</span>    <span class="session-speaker"><a href="/2015/program/speakers.html#sturmfels">Ben Sturmfels</a></span>
-                       <p>Do you love Emacs, but have never understood the strange code with lots of brackets? You're missing out on one of the great joys of Emacs — customising it to work exactly the way you want. It turns out that Emacs is little more than an interpreter for Lisp code interpreter, and once you know a little Emacs Lisp, almost anything is possible.</p>
+                       <p>Do you love Emacs, but have never understood the strange code with lots of brackets? You're missing out on one of the great joys of Emacs — customizing it to work exactly the way you want. It turns out that Emacs is a full Lisp code interpreter, so once you know a little Emacs Lisp, almost anything is possible.</p>
 
-                       <p>After attending this tutorial, you will know how to:</p>
-                       <ul>
-                               <li>make persistent customisations to your Emacs</li>
+                               <p>After attending this tutorial, you will know how to:
+                               <ul>
                                <li>read basic Emacs Lisp code</li>
                                <li>modify Emacs Lisp code as well as writing your own</li>
-                               <li>customise behaviour for distinct modes</li>
+                               <li>make persistent customizations to your Emacs</li>
                                <li>bind your favourite commands to keys</li>
-                               <li>answer your own questions with the amazing documentation system</li>
+                               <li>answer your own questions with the amazing help system</li>
                                <li>use built-in Emacs Lisp development tools like the debugger</li>
-                               <li>write your own reusable modules for Emacs customisations</li>
                        </ul>
-                       <p>This workshop will be enjoyed most if you already have a little programming experience.</p>
+                               Programming experience is helpful but not required. Bring your Emacs and type along.</p>
                </div>
 
                <div class="session">

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        </div>
        <div class="col-md-10 col-sm-9 col-xs-8">
                <h3 id="sturmfels">Ben Sturmfels</h3>
-               <p>Ben Sturmfels is a software engineer and free software activist from Ballarat, Australia. He organises Free Software Melbourne and leads the End Software Patents Australia campaign.</p>
+               <p>Ben is a software engineer and free software activist from Ballarat, Australia. He organises Free Software Melbourne, leads the End Software Patents Australia campaign, rides bikes, flies kites and grows vegetables.</p>
        </div>
 </div>