adds username and password parameters to mqtt-all

[peteretep]

No description provided.

[jane-t]

Line 203 needs changing to
if args.username and args.password

[peteretep]

oh yes, of course. thank you.

[coveralls]

Pull Request Test Coverage Report for Build 744639118

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 94.915%

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Totals
Change from base Build 363426739:	0.0%
Covered Lines:	112
Relevant Lines:	118

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💛 - Coveralls

[drkpxl]

This is awesome. Thank you. I was pulling my hair out trying to figure out syntax! Please merge this into master!

[Gadgetoid]

This is awesome. Thank you. I was pulling my hair out trying to figure out syntax! Please merge this into master!

I'm a day late and a dollar short. But thank you all, and done!