chore: Modernize travis config

.travis.yml

@@ -1,16 +1,12 @@
 language: node_js
 node_js:
-  - '0.10'
   - '4'
-before_install:
-  - npm install -g npm@latest-2
-before_deploy:
-  - 'git config --global user.email "opensource@groupon.com"'
-  - 'git config --global user.name "Groupon"'
+  - '6'
+  - '8'
 deploy:
   provider: script
   script: ./node_modules/.bin/nlm release
   skip_cleanup: true
   'on':
     branch: master
-    node: '4'
+    node: '8'

package.json

@@ -43,7 +43,7 @@
     "form-data": "^1.0.0-rc4",
     "mocha": "^2.0.0",
     "mochify": "^2.17.0",
-    "nlm": "^2.0.0",
+    "nlm": "^3.0.0",
     "promise": "^7.1.1",
     "whatwg-fetch": "^0.11.0"
   },