Show more update info in "Updated by" on climbs and areas

[emilyg1709]

Improvement idea, to recognize everyone who's contributed descriptions to an area rather than just the most recent!
Something like:

Updated by: [most recent updater name], [most recent update date]
[previous update name], [previous update date]
[previous update name], [previous update date]
[previous update name], [previous update date]

And so on. Not urgent just could be nice to recognize everybody who added text to an area.