Fixing typo in Rectanlge.js description. Adding Rectangle.js to dependencies.

build/deps.js

@@ -114,6 +114,12 @@ var deps = {
 		src: ['layer/vector/MultiPoly.js'],
 		deps: ['FeatureGroup', 'Polyline', 'Polygon'],
 		desc: 'MultiPolygon and MultyPolyline layers.'
+	},
+	
+	Rectangle: {
+		src: ['layer/vector/Rectangle.js'],
+		deps: ['Polygon'],
+		desc: ['Rectangle overlays.']
 	},
 
 	Circle: {

src/layer/vector/Rectangle.js

@@ -1,5 +1,5 @@
 /*
- * L.Rectangle extends Polygon and creates a rectangle when passed at LatLngBounds
+ * L.Rectangle extends Polygon and creates a rectangle when passed a LatLngBounds
  */
 
 L.Rectangle = L.Polygon.extend({