Disable programmatic scrolling for anchored entries

[spamguy]

This fixes a breakage caused by PR #2667 in which all route visits with no cached scroll position reset to the top. Anchored entries rely on the href's anchor to set scroll position and don't use cache; thus, all anchored entries scroll to the top.

nim's HTML cleaner was also updated to remove 'Source'/'Edit' links.

Fixes #2671 .

[Neonit]

Please merge soon. Bug is definitely a major one.

[xoism]

I second Neonit's request. This bug makes devdocs basically useless the way I work.

[themadsens]

Does anyone know how to deploy this PR? Please :-)
If at all possible given the way DevDocs work?

[Neonit]

A workaround for me (using desktop Firefox) is re-submitting the URL (does not reload the page), if a click on an entry in the left column doesn't beam me to the anchor. Shortcut: CTRL + L, ENTER. (F5 also does the job, but it reloads the page and takes a lot longer)

[spamguy]

Does anyone know how to deploy this PR? Please :-) If at all possible given the way DevDocs work?

AFAIK @simon04 is the primary admin that can approve, merge, and deploy.

[themadsens]

And replying to myself. When using as a chrome app that has no address line for Ctrl-L.
I have found that very other link fails, but it has to be a new one. So when a search result fails:

• Arrow down + enter: This one now opens
• Arrow down + enter: This one now fails
• Arrow up X 2 + enter: The intended target now opens