Add notes that webcam is not optional

In email invites and about page

lib/Vroom/I18N/en.pm

@@ -17,8 +17,8 @@ our %Lexicon = (
   "YOU_ARE_INVITED_TO_A_MEETING"         => "You are awaited on a video conferecing room. " .
                                             "Before joining it, make sure you have all the necessary",
   "A_MODERN_BROWSER"                     => "A modern web browser, recent versions of Mozilla Firefox, Google Chrome or Opera will work",
-  "A_WEBCAM"                             => "A webcam",
-  "A_MIC"                                => "A microphone",
+  "A_WEBCAM"                             => "A webcam (optional but recommanded)",
+  "A_MIC"                                => "A microphone and speakers (or headphones)",
   "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 :-)",
@@ -245,7 +245,8 @@ our %Lexicon = (
                                             "streams cannot establish, H323 vs SIP vs ISDN issues. All you need now is:" .
                                             "<ul>" .
                                             "  <li>A device (PC, MAC, pad, doesn't matter)</li>" .
-                                            "  <li>A webcam and a microphone</li>" .
+                                            "  <li>A webcam (optional but recommanded)</li>" .
+                                            "  <li>A microphone and speakers (or headphones)</li>" .
                                             "  <li>A web browser</li>" .
                                             "</ul>",
   "HOW_IT_WORKS"                         => "How it works ?",

lib/Vroom/I18N/fr.pm

@@ -19,8 +19,8 @@ our %Lexicon = (
                                                    "Avant de le rejoindre, assurez vous de disposer de tout le nécessaire",
     "A_MODERN_BROWSER"                          => "Un navigateur web moderne, les versions récentes des navigateurs Mozilla " .
                                                    "Firefox, Google Chrome ou Opera fonctionneront",
-    "A_WEBCAM"                                  => "Une webcam",
-    "A_MIC"                                     => "Un micro",
+    "A_WEBCAM"                                  => "Une webcam (optionnelle mais recommandée)",
+    "A_MIC"                                     => "Un micro et des haut-parleurs (ou un casque)",
     "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 :-)",
@@ -272,7 +272,8 @@ our %Lexicon = (
                                                    "soucis d'H323 vs SIP vs ISDN. Tout ce qu'il vous faut désormais, c'est:" .
                                                    "<ul>" .
                                                    "  <li>Un poste (PC, MAC, tablette, peu importe)</li>" .
-                                                   "  <li>Une webcam et un micro</li>" .
+                                                   "  <li>Une webcam (optionnelle mais recommandée)</li>" .
+                                                   "  <li>Un micro et des haut-parleurs (ou un casque)</li>" .
                                                    "  <li>Un navigateur web moderne</li>" .
                                                    "</ul>",
     "HOW_IT_WORKS"                              => "Comment ça marche ?",