Install bash completion for argcomplete

Update version to 0.4.0

refs: #4629, #4631

Change-Id: I2319a37fc1ba6587528c4ed2eadf727c3c0f6526
diff --git a/bin/minindn b/bin/minindn
index bd7c9fd..78af1ff 100755
--- a/bin/minindn
+++ b/bin/minindn
@@ -94,7 +94,7 @@
 except ImportError:
     pass
 
-VERSION_NUMBER = "0.3.0"
+VERSION_NUMBER = "0.4.0"
 INSTALL_DIR='/usr/local/etc/mini-ndn/'
 
 class PrintExperimentNames(argparse.Action):
@@ -511,4 +511,4 @@
         print("Error: {}".format(e))
         call(["nfd-stop"])
         call(["sudo", "mn", "--clean"])
-        sys.exit(1)
\ No newline at end of file
+        sys.exit(1)