Completely split up the templating system from the Matrix Spec template code.

The two are now linked together in build.py by specifying the input module.
Updated gendoc.py to specify the right module.

scripts/gendoc.py

@@ -34,7 +34,12 @@ def rst2html(i, o):
 def run_through_template(input):
     null = open(os.devnull, 'w')
     subprocess.check_output(
-        ['python', 'build.py', "-o", "../scripts/tmp", "../scripts/"+input],
+        [
+            'python', 'build.py', 
+            "-i", "matrix_templates", 
+            "-o", "../scripts/tmp", 
+            "../scripts/"+input
+        ],
         stderr=null,
         cwd="../templating",
     )