Update install-xtrn.js, make it apparent that debug mode does not install the...

Update install-xtrn.js, make it apparent that debug mode does not install the door. Also do not recycle in debug mode (nothing was installed). 
14 jobs for mlong/installxtrndebug in 17 minutes and 31 seconds (queued for 10 seconds)
Status Job ID Name Coverage
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passed #8704
FreeBSD
jsdoor-freebsd

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jsdoor-linux

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jsdoor-windows

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sbbs-freebsd

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sbbs-linux

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sbbs-windows

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sexpots-freebsd

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sexpots-linux

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sexpots-windows

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syncdraw-freebsd

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syncdraw-linux

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syncterm-freebsd

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syncterm-linux

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passed #8701
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syncterm-windows

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