Update the project's github URL

[bjornfor]

https://github.com/eclipse/mosquitto redirects to
https://github.com/eclipse-mosquitto/mosquitto, and this repo references
a mix of the two URLs. Fix it by using the non-redirecting URL
everywhere.

The changes were made with:

git ls-files | xargs -n1 sed -i -e "s,github.com/eclipse/mosquitto,github.com/eclipse-mosquitto/mosquitto,g"

Signed-off-by: Bjørn Forsman bjorn.forsman@gmail.com

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