Merge branch 'master' into soon

bower.json

@@ -36,7 +36,7 @@
     "alertifyjs": "1.0.11",
     "scrypt-async": "1.2.0",
     "require-css": "0.1.10",
-    "less": "^3.7.1",
+    "less": "3.7.1",
     "bootstrap": "^v4.0.0",
     "diff-dom": "2.1.1",
     "nthen": "^0.1.5",

www/common/cryptpad-common.js

@@ -1112,11 +1112,11 @@ define([
     };
 
     common.isWebRTCSupported = function () {
-        return navigator.getUserMedia ||
+        return Boolean(navigator.getUserMedia ||
             navigator.webkitGetUserMedia ||
             navigator.mozGetUserMedia ||
             navigator.msGetUserMedia ||
-            window.RTCPeerConnection;
+            window.RTCPeerConnection);
     };
 
     common.ready = (function () {