GUI version string includes OS and Arch

(Useful when debugging via screenshots...)

gui/index.html

@@ -326,7 +326,7 @@
                   </tr>
                   <tr>
                     <th><span class="glyphicon glyphicon-tag"></span>&emsp;<span translate>Version</span></th>
-                    <td class="text-right">{{version}}</td>
+                    <td class="text-right">{{versionString()}}</td>
                   </tr>
                 </tbody>
               </table>

gui/scripts/syncthing/core/controllers/syncthingController.js

@@ -40,6 +40,7 @@ angular.module('syncthing.core')
         $scope.deviceStats = {};
         $scope.folderStats = {};
         $scope.progress = {};
+        $scope.version = {};
 
         $(window).bind('beforeunload', function () {
             navigatingAway = true;
@@ -76,7 +77,7 @@ angular.module('syncthing.core')
             refreshFolderStats();
 
             $http.get(urlbase + '/system/version').success(function (data) {
-                $scope.version = data.version;
+                $scope.version = data;
             }).error($scope.emitHTTPError);
 
             $http.get(urlbase + '/svc/report').success(function (data) {
@@ -1204,6 +1205,30 @@ angular.module('syncthing.core')
             }).error($scope.emitHTTPError);
         };
 
+        $scope.versionString = function () {
+            if (!$scope.version.version) {
+                return '';
+            }
+
+            var os = {
+                'darwin': 'Mac OS X',
+                'dragonfly': 'DragonFly BSD',
+                'freebsd': 'FreeBSD',
+                'openbsd': 'OpenBSD',
+                'netbsd': 'NetBSD',
+                'linux': 'Linux',
+                'windows': 'Windows',
+                'solaris': 'Solaris',
+            }[$scope.version.os];
+
+            var arch ={
+                '386': '32 bit',
+                'amd64': '64 bit',
+            }[$scope.version.arch];
+
+            return $scope.version.version + ', ' + os + ' (' + arch + ')';
+        };
+
         // pseudo main. called on all definitions assigned
         initController();
     });