Update dependencies & travis.yml

.travis.yml

@@ -4,8 +4,6 @@ node_js:
   - "0.10"
   - "0.8"
   - "0.6"
-  - "0.5"
-  - "0.4"
 before_script:
   - npm install
 after_script:

package.json

@@ -10,8 +10,8 @@
   },
   "dependencies": {
     "es6-promise": "*",
-    "ws": "^0.4.32",
-    "xmlhttprequest": "^1.6.0"
+    "ws": "*",
+    "xmlhttprequest": "*"
   },
   "devDependencies": {
     "bower": "^1.3.12",