Lets change how cucumber run on travis

lib/tasks/travis.rake

 task :travis do
-  ["bundle exec rake cucumber", "bundle exec rspec spec"].each do |cmd|
+  ["cucumber", "rspec spec"].each do |cmd|
     puts "Starting to run #{cmd}..."
     system("export DISPLAY=:99.0 && bundle exec #{cmd}")
     raise "#{cmd} failed!" unless $?.exitstatus == 0