[svn] A few registration updates

-display an error for nonmatching passwords
-display an error for short passwords
-dont direct people to http://http://sitename....

templates/registration/activation_email.html

@@ -2,7 +2,7 @@
 
 <P>Glad you're joining the CUCC EXPO team! Please go to</P>
 
-<P><a href="http://{{ site }}{% url registration_activate activation_key %}">{{ site }}{% url registration_activate activation_key %}</a></P>
+<P><a href="{{ site }}{% url registration_activate activation_key %}">{{ site }}{% url registration_activate activation_key %}</a></P>
 
 <P>to activate your account. Do this within {{ expiration_days }} days, or else you'll have to sign up again.</P>
 

templates/registration/registration_form.html

@@ -10,6 +10,9 @@ registration_form.html | {{ block.super }}
 
 {% block content %}
 <form action="{% url registration_register %}" method="POST">
+        {% for error in form.non_field_errors %}
+        <span style="color:red">{{ error }}</span>
+        {% endfor %}
 <table>
 <tr>
     <td align="right" valign="top">Username:</td>
@@ -53,4 +56,4 @@ registration_form.html | {{ block.super }}
 </tr>
 </table>
 </form>
-{% endblock %}
+{% endblock %}