Fix docker files

docker-compose.benchmark.yml

@@ -25,7 +25,7 @@ services:
       BIGCHAINDB_GRAPHITE_HOST: graphite
     ports:
       - "9984"
-    command: bigchaindb start --init
+    command: bigchaindb start
 
   graphite:
     image: hopsoft/graphite-statsd

docker-compose.rdb.yml

@@ -45,4 +45,4 @@ services:
       BIGCHAINDB_SERVER_BIND: 0.0.0.0:9984
     ports:
       - "9984"
-    command: bigchaindb start --init
+    command: bigchaindb start

docker-compose.yml

@@ -30,4 +30,4 @@ services:
       BIGCHAINDB_WSSERVER_HOST: 0.0.0.0
     ports:
       - "9984"
-    command: bigchaindb start --init
+    command: bigchaindb start

tests/integration/test_integration.py

@@ -12,9 +12,9 @@ def test_double_create(b, user_pk):
                             metadata={'test': 'test'}).sign([b.me_private])
 
     b.write_transaction(tx)
-    time.sleep(2)
+    time.sleep(5)
     b.write_transaction(tx)
-    time.sleep(2)
+    time.sleep(5)
     tx_returned = b.get_transaction(tx.id)
 
     # test that the tx can be queried