a lot of stuff added

lib/tasks/clear_db.rake

@@ -0,0 +1,10 @@
+namespace :db do
+	desc "Clears all date in db"
+    task :clear_data => :environment do
+		users = User.all
+      puts "Number of users in db: #{users.size}"
+      puts "Deleting data....."
+      User.destroy_all
+      puts "Done"
+	end
+end