add coveralls back

Author: Judahmeek

spec/rails_helper.rb

@@ -7,6 +7,8 @@
 require "capybara/rspec"
 require "capybara-screenshot/rspec"
 require "database_cleaner"
+require "coveralls"
+Coveralls.wear!("rails") # must occur before any of your application code is required
 
 # Add additional requires below this line. Rails is not loaded until this point!