Allow text to be translated and fix URL paths in calls to docURL() function.

[braders]

Overview

Primarially this ensures that the text passed to docLink can be translated (or word replaced). In a handful of cases I've also updated paths which were 404'ing to the appropriate locations.

Before

• Hardcoded text
• Some links to https://docs.civicrm.org 404'd

After

• Use of {ts} instead of hardcoded text
• Links don't 404

[civibot]

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[mlutfy]

jenkins, test this please

[mlutfy]

Thanks @braders - seems like a good fix to me. This function has always been a bit problematic. I will leave open for others to review, because I keep forgetting some of the fine print about this function.

[seamuslee001]

jenkins, test this please

[totten]

Yeah, it's tricky to work with those functions, and I think this PR is doing it effectively. For r-run, I spot-checked about ~2/3 of the changes (mostly in English; but also several in French), and all the links look good. Merging.