crossbrowser testing w/ saucelabs and zuul

.zuul.yml

@@ -0,0 +1,20 @@
+ui: tape
+browsers:
+    - name: chrome
+      version: [36, -2..latest]
+    - name: safari
+      version: -2..latest
+    - name: firefox
+      version: -2..latest
+    - name: ie
+      version: 9..latest
+    - name: opera
+      version: -1..latest
+    - name: android
+      version: -2..latest
+browserify:
+   - transform: coffeeify
+   - options:
+       extensions:
+         - .coffee
+

package.json

@@ -11,6 +11,7 @@
   },
   "scripts": {
     "test": "coffeetape test/*.coffee | faucet",
+    "test-saucelabs": "zuul -- test/*.coffee",
     "build": "npm run build-lib ; npm run build-dist",
     "watch": "npm run watch-lib & npm run watch-dist",
     "build-lib": "coffee -o lib --compile --bare --map src/*.coffee",
@@ -22,15 +23,16 @@
   "devDependencies": {
     "browserify": "^11.0.1",
     "coffee-coverage": "^0.6.3",
-    "coffee-script": "^1.9.3",
+    "coffee-script": "^1.10.0",
     "coffeeify": "^1.1.0",
     "coffeetape": "^1.0.1",
     "exorcist": "^0.4.0",
     "faucet": "^0.0.1",
     "istanbul": "^0.3.18",
     "tape": "^4.2.0",
     "uglifyify": "^3.0.1",
-    "watchify": "^3.3.1"
+    "watchify": "^3.3.1",
+    "zuul": "^3.4.0"
   },
   "keywords": [
     "password",