[ui][registration][templates] update url messages

beat/web/accounts/templates/accounts/url_validation_failed.html

@@ -55,7 +55,7 @@
 <div class="row">
   <div class="col-sm-6 col-sm-offset-3">
     {% with 48 as width %}
-	<h3 class="page-title"><img class="img-circle" width="{{ width }}" height="{{ width }}" data-toggle="tooltip" data-placement="top" title="To change your avatar, visit http://gravatar.com"></img>You can't validate this supervisee</h3>
+	<h3 class="page-title"><img class="img-circle" width="{{ width }}" height="{{ width }}" data-toggle="tooltip" data-placement="top" title="To change your avatar, visit http://gravatar.com"></img>You can't validate this supervisee!</h3>
     {% endwith %}
   </div>
 </div>

beat/web/ui/registration/templates/registration/mail.account_revalidation.message.txt

@@ -10,6 +10,6 @@ If you haven't done this by this expiration date: {{ expiration_date }}, your ac
 will be blocked and you will then need to go trough an account revalidation
 procedure to re-activate it.
 
-You can also click on the following direct link to accomplish this action and re-validate your account at {{ prefix }}/accounts/temp/{{ temp_url }}
+You can also click on the following direct link to accomplish this action and re-validate your account at {{ prefix }}/accounts/validation/{{ temp_url }}
 
 BEAT Administrators at the Idiap Research Institute

beat/web/ui/registration/templates/registration/mail.supervisor_validation.message.txt

@@ -12,7 +12,7 @@ Username: {{ supervisee.username }}
 If you don't do this the supervisee will not be able to use his account and
 will be deleted after 7 days.
 
-You can also click on the following direct link to accomplish this action and accept this new supervisee at {{ prefix }}/accounts/temp/{{ temp_url }}
+You can also click on the following direct link to accomplish this action and accept this new supervisee at {{ prefix }}/accounts/validation/{{ temp_url }}
 
 If you are having problems to activate your supervisee account, contact a member of our
 support staff at {{ prefix }}{% url 'contact' %}.