Fix heroku deploy dependency on rubocop

* Also default rake will run tests and lint

Author: justin808

Rakefile

@@ -4,7 +4,3 @@
 require File.expand_path("../config/application", __FILE__)
 
 Rails.application.load_tasks
-
-require "rubocop/rake_task"
-
-RuboCop::RakeTask.new

lib/tasks/rubocop.rake

@@ -0,0 +1,13 @@
+if %w(development test).include? Rails.env
+  require "rubocop/rake_task"
+  RuboCop::RakeTask.new
+
+  task(:default).clear
+
+  desc "JS Linting"
+  task :js_lint do
+    sh "cd client && bin/lint"
+  end
+
+  task default: [:spec, :rubocop]
+end