Add custom message intro in email invitation

Also don't XML escape translated strings in the plain text version

lib/Vroom/I18N/en.pm

@@ -18,6 +18,7 @@ our %Lexicon = (
   "A_WEBCAM"                             => "A webcam",
   "A_MIC"                                => "A microphone",
   "WHEN_YOU_ARE_READY"                   => "When you are ready, go to this address to join the conference",
+  "MESSAGE_FROM_ORGANIZER"               => "Message from the meeting organizer",
   "HAVE_A_NICE_MEETING"                  => "Have a nice meeting :-)",
   "EMAIL_SIGN"                           => "VROOM! And video conferencing becomes free, simple and safe",
   "FEEDBACK"                             => "Feedback",

lib/Vroom/I18N/fr.pm

@@ -20,6 +20,7 @@ our %Lexicon = (
     "A_WEBCAM"                                  => "Une webcam",
     "A_MIC"                                     => "Un micro",
     "WHEN_YOU_ARE_READY"                        => "Quand vous êtes prêt, rendez-vous sur cette adresse pour joindre la conférence",
+    "MESSAGE_FROM_ORGANIZER"                    => "Message de l'organisateur de la réunion",
     "HAVE_A_NICE_MEETING"                       => "Bonne réunion :-)",
     "EMAIL_SIGN"                                => "VROOM! Et la visio conférence devient libre, simple et sûr",
     "FEEDBACK"                                  => "Retour d'expérience",

templates/default/invite.email_html.ep

@@ -28,6 +28,9 @@
 </p>
 <% if ($message && $message ne ''){ %>
 <p>
+  <%=l 'MESSAGE_FROM_ORGANIZER' %>:
+</p>
+<p>
   <%= $message %>
 </p>
 <% } %>

templates/default/invite.email_text.ep

@@ -2,7 +2,7 @@
   my $url = $self->url_for('/')->to_abs;
   $url .= ($url =~ m/\/$/) ? '' : '/';
 %>
-<%=l 'YOU_ARE_INVITED_TO_A_MEETING' %>
+<%==l 'YOU_ARE_INVITED_TO_A_MEETING' %>
 
   * <%=l 'A_MODERN_BROWSER' %>
   * <%=l 'A_WEBCAM' %>
@@ -10,12 +10,14 @@
 
 <%=l 'WHEN_YOU_ARE_READY' %>
 
-<%= $url . $room %>
+<%== $url . $room %>
 
 <% if ($message && $message ne ''){ %>
+<%==l 'MESSAGE_FROM_ORGANIZER' %>:
+
 <%== $message %>
 <% } %>
 
 <%=l 'HAVE_A_NICE_MEETING' %>
 -- 
-<%=l 'EMAIL_SIGN' %>
+<%==l 'EMAIL_SIGN' %>