[MERGE] rename 'submit' to 'send', make -o mandatory

[John Arbash Meinel]

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Aaron Bentley wrote:
> Martin Pool wrote:
>> Martin Pool has voted approve.
>> Status is now: Approved
>> Comment:
>> Thanks very much.  Does this need to be in NEWS?
> 
> I don't think so.  The submit command didn't exist in the last release.
> 
> Aaron
> 

Well the new 'send' command should be commented on in NEWS. Both to let people
know it exists, and to have us easily know when we introduced the command.

John
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