chore(travis): add all versions and increase timeout

.travis.yml

@@ -1,10 +1,14 @@
 sudo: false
 language: node_js
 node_js:
-  - 'iojs'
+  - '5'
+  - '4'
+  - '3'
+  - '2'
+  - '1'
   - '0.12'
   - '0.10'
 before_script:
   - git config --global user.name "Travis-CI"
   - git config --global user.email "dummy@example.org"
-after_script: NODE_ENV=test istanbul cover ./node_modules/mocha/bin/_mocha -- -R spec && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage
+after_script: NODE_ENV=test istanbul cover ./node_modules/mocha/bin/_mocha -- -R spec --timeout 20000 && cat ./coverage/lcov.info | ./node_modules/coveralls/bin/coveralls.js && rm -rf ./coverage

package.json

@@ -34,9 +34,9 @@
     "shelljs": "^0.6.0"
   },
   "scripts": {
-    "coverage": "istanbul cover _mocha -- -R spec && rm -rf ./coverage",
+    "coverage": "istanbul cover _mocha -- -R spec --timeout 20000 && rm -rf ./coverage",
     "lint": "jshint presets test *.js --exclude node_modules && jscs presets test *.js",
-    "test": "npm run-script lint && mocha"
+    "test": "npm run-script lint && mocha --timeout 20000"
   },
   "bin": "cli.js"
 }