prune deps (#340)

localization/index.js

@@ -1,5 +1,4 @@
 var enUs = require('./en-US')
-var xtend = require('xtend')
 
 module.exports = l10n
 
@@ -9,5 +8,5 @@ function l10n (language) {
   } catch (e) {
     return enUs
   }
-  return xtend(enUs, lang)
+  return Object.assign({}, enUs, lang)
 }

package.json

@@ -25,18 +25,15 @@
     "brfs": "^1.4.3",
     "browserify": "^14.4.0",
     "buffer-graph": "^4.0.0",
-    "choo-devtools": "^2.0.0",
     "clean-css": "^4.1.8",
     "concat-stream": "^1.6.0",
-    "convert-source-map": "^1.5.0",
     "css-extract": "^1.2.0",
     "debug": "^3.0.1",
     "dedent": "^0.7.0",
     "disc": "^1.3.2",
     "documentify": "^3.0.0",
     "exorcist": "^1.0.0",
     "explain-error": "^1.0.4",
-    "factor-bundle": "^2.5.0",
     "fast-json-parse": "^1.0.2",
     "findup": "^0.1.5",
     "flush-write-stream": "^1.0.2",
@@ -48,7 +45,6 @@
     "hyperstream": "^1.2.2",
     "iltorb": "^1.3.6",
     "inline-critical-css": "^1.1.0",
-    "json-stream-to-object": "^1.1.0",
     "keypress": "^0.2.1",
     "minimist": "^1.2.0",
     "mkdirp": "^0.5.1",
@@ -76,7 +72,6 @@
     "tinyify": "^2.3.0",
     "watchify": "^3.9.0",
     "wayfarer": "^6.6.2",
-    "xtend": "^4.0.1",
     "yo-yoify": "^4.1.0"
   },
   "devDependencies": {