Copy php files out of the punch output folder and into dist.

@@ -279,7 +279,7 @@ module.exports = function (grunt) {
                 cwd: htmlSourceDir,
                 dest: 'dist',
                 src: [
-                    '{,*/}*.html',
+                    '{,*/}*.{html,php}',
                 ]
             });
         } else {