Fix failing tests. Replace ruby to 2.1.1 in travis. Update travis config

.travis.yml

@@ -1,6 +1,6 @@
 language: ruby
 rvm:
-  - 2.1.0
+  - 2.1.1
 branches:
   only:
     - master
@@ -15,6 +15,5 @@ before_script:
   - cp config/database.yml.example config/database.yml
   - cp config/config.yml.example config/config.yml
   - RAILS_ENV=test bundle exec rake db:migrate --trace
-  - bundle exec rake db:test:prepare
 script:
-  - bundle exec rake spec
+  - bundle exec rspec --color --format documentation