SYWEB-12: More formatting.

webclient/app-directive.js

@@ -40,4 +40,19 @@ angular.module('matrixWebClient')
             }            
         }
     };
-}]);
+}])
+.directive('elastic', [ // http://stackoverflow.com/questions/17772260/textarea-auto-height
+    '$timeout',
+    function($timeout) {
+      return {
+        restrict: 'A',
+        link: function($scope, element) {
+          var resize = function() {
+            return element[0].style.height = "" + element[0].scrollHeight + "px";
+          };
+          element.on("blur keyup change", resize);
+          $timeout(resize, 10);
+        }
+      };
+    }
+]);;