updates devDependencies

package.json

@@ -3,18 +3,18 @@
   "version": "1.9.7",
   "description": "Data visualization made easy. A javascript library that extends the popular D3.js to enable fast and beautiful visualizations.",
   "devDependencies": {
-    "browserify": "^13.0.0",
-    "coffee-script": "^1.9.3",
-    "event-stream": "^3.3.1",
-    "gulp": "^3.9.0",
-    "gulp-chmod": "^1.2.0",
-    "gulp-connect": "^4.0.0",
+    "browserify": "^13.1.0",
+    "coffee-script": "^1.10.0",
+    "event-stream": "^3.3.4",
+    "gulp": "^3.9.1",
+    "gulp-chmod": "^1.3.0",
+    "gulp-connect": "^5.0.0",
     "gulp-duration": "^0.0.0",
     "gulp-notify": "^2.2.0",
     "gulp-rename": "^1.2.2",
-    "gulp-streamify": "^1.0.0",
-    "gulp-uglify": "^1.5.2",
-    "gulp-util": "^3.0.6",
+    "gulp-streamify": "^1.0.2",
+    "gulp-uglify": "^2.0.0",
+    "gulp-util": "^3.0.7",
     "require-dir": "^0.3.0",
     "vinyl-source-stream": "^1.1.0",
     "watchify": "^3.7.0"