chore: add reference to defaults in constructors

src/jquery.collision.js

@@ -59,6 +59,7 @@
         this.init();
     }
 
+    Collision.defaults = defaults;
 
     var fn = Collision.prototype;
 

src/jquery.draggable.js

@@ -82,6 +82,8 @@
       this.init();
     }
 
+    Draggable.defaults = defaults;
+
     var fn = Draggable.prototype;
 
     fn.init = function() {

src/jquery.gridster.js

@@ -147,6 +147,7 @@
         this.options.auto_init && this.init();
     }
 
+    Gridster.defaults = defaults;
     Gridster.generated_stylesheets = [];