Added class constructors, fixed Stripshader, added relative Tween example and updated Tween source.

src/math/Math.js

@@ -688,7 +688,7 @@ Phaser.Math = {
     },
 
     /**
-    * Description.
+    * A Linear Interpolation Method, mostly used by Phaser.Tween.
     * @method Phaser.Math#linearInterpolation
     * @param {number} v
     * @param {number} k
@@ -715,7 +715,7 @@ Phaser.Math = {
     },
 
     /**
-    * Description.
+    * A Bezier Interpolation Method, mostly used by Phaser.Tween.
     * @method Phaser.Math#bezierInterpolation
     * @param {number} v
     * @param {number} k
@@ -736,7 +736,7 @@ Phaser.Math = {
     },
 
     /**
-    * Description.
+    * A Catmull Rom Interpolation Method, mostly used by Phaser.Tween.
     * @method Phaser.Math#catmullRomInterpolation
     * @param {number} v
     * @param {number} k

src/math/QuadTree.js

@@ -263,3 +263,5 @@ Phaser.QuadTree.prototype = {
     }
 
 };
+
+Phaser.QuadTree.prototype.constructor = Phaser.QuadTree;

src/math/RandomDataGenerator.js

@@ -245,3 +245,5 @@ Phaser.RandomDataGenerator.prototype = {
     }
 
 };
+
+Phaser.RandomDataGenerator.prototype.constructor = Phaser.RandomDataGenerator;