V2 integration tests (RichardKnop#628)

* fix: fix redis issues

* fix: fix examples

* feat: v2 integration tests, improvements

* chore: move examples into v1/v2 subfolders

README.md

@@ -90,22 +90,28 @@ go get github.com/RichardKnop/machinery/v1
 
 First, you will need to define some tasks. Look at sample tasks in `example/tasks/tasks.go` to see a few examples.
 
-Second, you will need to launch a worker process with one of these commands:
+Second, you will need to launch a worker process with one of these commands (v2 is recommended since it doesn't import dependencies for all brokers / backends, only those you actually need):
 
 ```sh
-go run example/amqp.go worker
-go run example/redigo/main.go worker // Redis with redigo driver
-go run example/go-redis/main.go worker // Redis with Go Redis driver
+go run example/v2/amqp.go worker
+go run example/v2/redigo/main.go worker // Redis with redigo driver
+go run example/v2/go-redis/main.go worker // Redis with Go Redis driver
+
+go run example/v1/amqp.go worker
+go run example/v1/redis.go worker
 ```
 
 ![Example worker][1]
 
-Finally, once you have a worker running and waiting for tasks to consume, send some tasks with one of these commands:
+Finally, once you have a worker running and waiting for tasks to consume, send some tasks with one of these commands (v2 is recommended since it doesn't import dependencies for all brokers / backends, only those you actually need):
 
 ```sh
-go run example/amqp.go send
-go run example/redigo/main.go send // Redis with redigo driver
-go run example/go-redis/main.go send // Redis with Go Redis driver
+go run example/v2/amqp.go send
+go run example/v2/redigo/main.go send // Redis with redigo driver
+go run example/v2/go-redis/main.go send // Redis with Go Redis driver
+
+go run example/v1/amqp.go send
+go run example/v1/redis.go send
 ```
 
 You will be able to see the tasks being processed asynchronously by the worker: