chore(build): Update versions under test

AccaliaDeElementia · AccaliaDeElementia · commit 617406a4331c · 2016-12-14T20:36:03.000Z
BREAKING CHANGE: commit 0e5d698introduced a breaking change but did not note it correctly. See the commit message for 0e5d698 for details
diff --git a/.travis.yml b/.travis.yml
@@ -2,8 +2,8 @@ language: node_js
 node_js:
 - 'node'
 - '4'
-- '6.2'
-- '6.3'
+- '6'
+- ''
 branches:
   except:
     - /^(?i:v)\d+[.]\d+[.]\d+$/
diff --git a/appveyor.yml b/appveyor.yml
@@ -3,6 +3,7 @@ environment:
     - nodejs_version: ''
     - nodejs_version: '6'
     - nodejs_version: '4'
+    - nodejs_version: '7'
 platform:
   - x64
 install:
