Clean up executable modules

Disabled execution of modules loaded by execution files in bin
Changed file bit mode of modules which are executable

Change-Id: If8a3378c79bb5bfcde1b93066c6b2c0a3d1107ad

quantum/agent/dhcp_agent.py

@@ -544,7 +544,3 @@ def main():
 
     mgr = DhcpAgent(cfg.CONF)
     mgr.run()
-
-
-if __name__ == '__main__':
-    main()

quantum/agent/l3_agent.py

@@ -552,7 +552,3 @@ def main():
 
     mgr = L3NATAgent(conf)
     mgr.daemon_loop()
-
-
-if __name__ == '__main__':
-    main()

quantum/debug/shell.py

@@ -79,6 +79,3 @@ class QuantumDebugShell(QuantumShell):
 
 def main(argv=None):
     return QuantumDebugShell(QUANTUM_API_VERSION).run(argv or sys.argv[1:])
-
-if __name__ == "__main__":
-    sys.exit(main())

quantum/plugins/cisco/client/cli.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 # vim: tabstop=4 shiftwidth=4 softtabstop=4
 #
 # Copyright 2011 Cisco Systems, Inc.  All rights reserved.

quantum/plugins/cisco/services/service_insertion.py

@@ -1,3 +1,4 @@
+#!/usr/bin/env python
 # vim: tabstop=4 shiftwidth=4 softtabstop=4
 #
 # Copyright 2011 Cisco Systems, Inc.  All rights reserved.