allow for ":" chars in basic.auth.user.info passwords

[Yoyoda]

":" chars must be allowed in basic.auth.user.info passwords.
the "split(":")" without limit is problematic.

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[HannesHil]

is there any update on this PR?
We are currently facing the same issue

[itsmestefanjay]

@edenhill Same here, is it possible to merge this soon?

[kkg-dev]

@edenhill - could You please review the PR?

Thanks :)