fix failing on travis, and added first spec

.travis.yml

@@ -3,7 +3,7 @@ language: ruby
 bundler_args: '--binstubs --without documentation'
 before_install: gem install bundler
 
-before_script: "cd test_app && bundle install && ./script/rails generate impressionist -f && rake db:migrate && cd .."
+before_script: "cd tests/test_app && bundle install && ./script/rails generate impressionist -f && rake db:migrate && cd .."
 
 rvm:
   - rbx-18mode

lib/impressionist/rails_toggle.rb

@@ -0,0 +1,5 @@
+module Impressionist
+  class RailsToggle
+
+  end
+end

tests/spec/rails_toggle_spec.rb

@@ -1,4 +1,12 @@
 # Responsability
   # Test whether rails version > 4
   # includes attr_accessible if < 4
-require "test_helper.rb"
+require 'test_helper.rb'
+require 'impressionist/rails_toggle'
+
+module Impressionist
+  describe RailsToggle do
+
+  end
+
+end