add polyfills for es6-promise and fetch for those browsers that don't support them

closes #2

client/security.coffee

@@ -114,6 +114,14 @@ setup = (user) ->
       lastCookie = currentCookie
   , 100
 
+  wiki.getScript '/security/modernizr-custom.js', () ->
+    console.log 'modernizr loaded'
+    unless Modernizr.promises
+      require('es6-promise').polyfill()
+
+    unless Modernizr.fetch
+      require('whatwg-fetch')
+
     wiki.getScript '/security/winchan.js'
     if (!$("link[href='/security/style.css']").length)
       $('<link rel="stylesheet" href="/security/style.css">').appendTo("head")

package.json

@@ -9,13 +9,15 @@
   "license": "MIT",
   "dependencies": {
     "coffee-script": "1.10",
+    "es6-promise": "^3.2.1",
     "lodash": "^4.13.1",
     "passport": "^0.3.2",
     "passport-github": "^1.1.0",
     "passport-google-oauth20": "^1.0.0",
     "passport-twitter": "^1.0.4",
     "persona-pass": "^0.2.1",
-    "qs": "^6.2.0"
+    "qs": "^6.2.0",
+    "whatwg-fetch": "^1.0.0"
   },
   "devDependencies": {
     "coffeeify": "*",