Merge pull request #362 from nirmata/travis_build

skip documentation changes

.travis.yml

@@ -6,7 +6,14 @@ go:
 branches: 
   only:
     - master
-
+before_install:
+ - |
+   if ! git diff --name-only $TRAVIS_COMMIT_RANGE | grep -qvE '(.md)|^(LICENSE)'
+   then
+     echo "Not running CI since only docs were changed."
+     exit
+   fi
+   
 # Skip the install step. Don't `go get` dependencies. Only build with the code
 # in vendor/
 install: true