Bumped dependencies and added support for 0.12 on travis.

Author: mcollina

.travis.yml

@@ -1,6 +1,7 @@
 language: node_js
 node_js:
   - 0.10
+  - 0.12
 services:
   - redis-server
   - mongodb

package.json

@@ -30,7 +30,7 @@
     "url": "http://github.com/mcollina/mosca/issues"
   },
   "engines": {
-    "node": "0.10.x"
+    "node": ">=0.10.10 <0.13"
   },
   "keywords": [
     "mqtt",
@@ -48,7 +48,7 @@
   "author": "Matteo Collina <hello@matteocollina.com>",
   "license": "MIT",
   "devDependencies": {
-    "async_bench": "~0.3.0",
+    "async_bench": "~0.4.0",
     "chai": "^1.10.0",
     "coveralls": "~2.11.1",
     "dox-foundation": "~0.5.4",
@@ -67,7 +67,7 @@
     "underscore": "^1.7.0"
   },
   "dependencies": {
-    "ascoltatori": "~0.19.0",
+    "ascoltatori": "~0.20.0",
     "async": "~0.9.0",
     "brfs": "1.3.0",
     "browserify": "~8.1.1",