Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality

node_modules/duplexer/package.json

@@ -0,0 +1,42 @@
+{
+  "name": "duplexer",
+  "version": "0.1.2",
+  "description": "Creates a duplex stream",
+  "keywords": [],
+  "author": "Raynos <raynos2@gmail.com>",
+  "repository": "git://github.com/Raynos/duplexer.git",
+  "main": "index",
+  "homepage": "https://github.com/Raynos/duplexer",
+  "contributors": [
+    {
+      "name": "Jake Verbaten"
+    }
+  ],
+  "bugs": {
+    "url": "https://github.com/Raynos/duplexer/issues",
+    "email": "raynos2@gmail.com"
+  },
+  "devDependencies": {
+    "tape": "0.3.3",
+    "through": "~0.1.4"
+  },
+  "license": "MIT",
+  "scripts": {
+    "test": "node test"
+  },
+  "testling": {
+    "files": "test/index.js",
+    "browsers": [
+      "ie/8..latest",
+      "firefox/16..latest",
+      "firefox/nightly",
+      "chrome/22..latest",
+      "chrome/canary",
+      "opera/12..latest",
+      "opera/next",
+      "safari/5.1..latest",
+      "ipad/6.0..latest",
+      "iphone/6.0..latest"
+    ]
+  }
+}