More documentation fixes

Author: TimMensch

cocos2d/actions/CCAction.js

@@ -274,7 +274,7 @@ cc.FiniteTimeAction = cc.Action.extend(/** @lends cc.FiniteTimeAction# */{
      * - The reversed action will be x of 100 move to 0.
      * - Will be rewritten
      *
-     * @return {Null}
+     * @return {?cc.Action}
      */
     reverse:function () {
         cc.log("cocos2d: FiniteTimeAction#reverse: Implement me");

cocos2d/core/CCCamera.js

@@ -43,7 +43,7 @@
  *     - It is recommended to use it ONLY if you are going to create 3D effects. For 2D effecs, use the action CCFollow or position/scale/rotate. *
  * </p>
  */
-cc.Camera = cc.Class.extend({
+cc.Camera = cc.Class.extend(/** @lends cc.Camera# */{
     _eyeX:null,
     _eyeY:null,
     _eyeZ:null,

cocos2d/node-grid/CCNodeGrid.js

@@ -33,7 +33,7 @@
  * @property {cc.GridBase}  grid    - Grid object that is used when applying effects
  * @property {cc.Node}      target  - <@writeonly>Target
  */
-cc.NodeGrid = cc.Node.extend({
+cc.NodeGrid = cc.Node.extend(/** @lends cc.NodeGrid# */{
     grid: null,
     _target: null,
     _gridRect:null,
@@ -61,7 +61,7 @@ cc.NodeGrid = cc.Node.extend({
 
     /**
      * @brief Set the effect grid rect.
-     * @param {cc.rect} rect.
+     * @param {cc.rect} rect
      */
     setGridRect: function (rect) {
         this._gridRect = rect;
@@ -147,4 +147,4 @@ cc.defineGetterSetter(_p, "target", null, _p.setTarget);
  */
 cc.NodeGrid.create = function () {
     return new cc.NodeGrid();
-};
+};