2D Transformation--fix int bug, hide java download

closes jdf#154 
1. The house() function declaration statement includes type "int" arguments left over from the original Java example -- this is not valid python.
2. The download is for the java version of the code rather than python--the link could be restored after those resource .pde sketches were all localized to .pyde sketches.

Author: jeremydouglass

Tutorials/transform2d/index.html

@@ -19,11 +19,11 @@ <h1>2D Transformations</h1>
         "https://github.com/jdf/processing-py-site/issues?state=open">
         let us know</a>. This work is licensed under a <a href="http://creativecommons.org/licenses/by-nc-sa/4.0/"> Creative Commons 
         Attribution-NonCommercial-ShareAlike 4.0 International License.</a> </p>
-  
+<!--  
         <p>&nbsp;</p>
 <a href="imgs/transform2d.zip">Download the files from this tutorial.</a>
 </p>
-
+-->
 	<p>&nbsp;</p>
 
 <p>
@@ -156,7 +156,7 @@ <h3>What&rsquo;s the Advantage?</h3>
 </p>
 
 <pre>
-def house(int x, int y):
+def house(x, y):
   triangle(x + 15, y, x, y + 15, x + 30, y + 15)
   rect(x, y + 15, 30, 30)
   rect(x + 12, y + 30, 10, 15)
@@ -170,7 +170,7 @@ <h3>What&rsquo;s the Advantage?</h3>
 </p>
 
 <pre>
-def house(int x, int y):
+def house(x, y):
   pushMatrix()
   translate(x, y)
   triangle(15, 0, 0, 15, 30, 15)