Tweaked gitignore

gitignore removed all composer and npm files, so automated builds would fail

conf/site/node_modules/recast/example/generic-identity

@@ -0,0 +1,17 @@
+#!/usr/bin/env node
+
+// This script should reprint the contents of the given file without
+// reusing the original source, but with identical AST structure.
+
+var recast = require("recast");
+
+recast.run(function(ast, callback) {
+    recast.visit(ast, {
+        visitNode: function(path) {
+            this.traverse(path);
+            path.node.original = null;
+        }
+    });
+
+    callback(ast);
+});