scripted-diff: Rename mininode to p2p

-BEGIN VERIFY SCRIPT-
sed -i 's/\.mininode/\.p2p/g' $(git grep -l "mininode")
git mv test/functional/test_framework/mininode.py test/functional/test_framework/p2p.py
-END VERIFY SCRIPT-

test/functional/test_framework/test_framework.py

@@ -21,7 +21,7 @@ import time
 from .authproxy import JSONRPCException
 from . import coverage
 from .test_node import TestNode
-from .mininode import NetworkThread
+from .p2p import NetworkThread
 from .util import (
     MAX_NODES,
     PortSeed,