Merge pull request #289 from vrr-21/linter-exp

Adding Rubocop to Gemfile and Travis CI

Author: vrr-21

.travis.yml

@@ -1,6 +1,9 @@
 language: ruby
 rvm:
   - 2.3.0
+script:
+  - rubocop
+  - rake
 after_success: coveralls
 notifications:
   email:

Gemfile

@@ -20,4 +20,5 @@ group :test do
   gem 'shoulda'
   gem 'shoulda-matchers'
   gem 'shoulda-context'
+  gem 'rubocop', require: false
 end