In 'uctop', replace 'top' with 'current' [revision]

In 'uctop', replace 'top' with 'current' [revision]

We can continue calling the "top revision" such in English,
but no need to confuse everyone looking at Special:Contributions.
The closest "translation" to human English would be "last",
however that can be confused with "last by you" etc.
Most translations are already "current" or "last revision/for the page".
https://translatewiki.net/w/i.php?title=Special%3ATranslations&message=Uctop&namespace=8

Also changed on en.wiki, 24 February 2013, by WilliamH:
«"top" is vague and its meaning must be inferred».
<https://en.wikipedia.org/w/index.php?title=MediaWiki:Uctop&oldid=540122804>
Kudos to the first sysop caring 9 years after complaints on talk.

Change-Id: I75d28d344d2e4e468295b0d6bbb0dcf19b459427