Enable tty in dev container

Pretty colors and real-time migration logs

tools/docker-compose.yml

@@ -35,6 +35,7 @@ services:
       - "./redis/redis_socket_standalone:/var/run/redis/"
       - "./memcached/:/var/run/memcached"
     privileged: true
+    tty: true
   # A useful container that simply passes through log messages to the console
   # helpful for testing awx/tower logging
   # logstash: