Name change branch created

--HG--
branch : pmitros-name-change

emails/email_change.txt

@@ -0,0 +1,9 @@
+We received a request to change the e-mail associated with MITx
+account ${username} from ${oldemail} to ${newemail}. If this is
+correct, please confirm your new e-mail address by visiting:
+
+http://${ site }/confirmemail/${ key }
+
+If you didn't request this, you don't need to do anything; you won't
+receive any more email from us. Please do not reply to this e-mail; if
+you require assistance, check the help section of the MITx web site.

emails/email_change_done.txt

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+This is to confirm that you changed the e-mail associated with MITx
+account ${username} from ${oldemail} to ${newemail}. If you did not
+make this request, please contact the course staff
+immediately. Contact information is listed at:
+
+  https://6002x.mitx.mit.edu/t/mitx_help.html

name_changes.html

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+<%inherit file="main.html" />
+<%include file="navigation.html" args="active_page=''" />
+<section class="main-content">
+<div class="gradebook-wrapper">
+  <section class="gradebook-content">
+  <h1>Pending name changes</h1>
+  <table>
+  % for s in students:
+  <tr><td><a href=/profile/${s.uid}/>${s.oldname}</td><td>${s.newname}</td><td onclick="update({$s.uid});">[Change]</td></tr>
+  % endfor
+  </table>
+  </section>
+</div>
+</section>