LocalWrapper deletion possible

[derrop]

I think the local wrapper shouldn't be able to be deleted using "delete wrapper NAME", this causes problems like this https://pastes.gq/vAlpyAEgC9 when you restart the local wrapper.

To reproduce this, just start the Master using the localwrapper start file and then delete the wrapper by typing "delete wrapper Wrapper-1" in the console, now restart the master and you should see the errors from above.

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[GiantTreeLP]

This is a tough one but I'm sure I can fix that quickly

[GiantTreeLP]

Fixed