Disable dummy boot functionality in production

[cc-a]

The process manager UI currently has a "Boot" button. This invokes the dummy_boot command of the process manager. This is useful for testing in development but shouldn't be present in production. We need to:

• Use the DEBUG setting to control whether the feature is present.
• If DEBUG=False hide the "Boot" button in the process manager UI.
• If DEBUG=False do not include the boot_process view in urls.py