Do some codeclimate setup

Author: searls

Diff for: .codeclimate.yml

@@ -0,0 +1,11 @@
+ratings:
+  paths:
+    - src/**
+    - test/**
+exclude_paths:
+  - dist/**/*
+  - docs/**/*
+  - examples/**/*
+  - lib/**/*
+  - node_modules/**/*
+  - testem.js