Rename "Start date" to "End date"

[waldyrious]

I'd suggest changing "Start date" to "End date", since it's the end, chronologically speaking, of the period that will be searched, rather than the beginning. I confess the current nomenclature has always confused me. Maybe even "latest revision to check", to make it more explicit and less dependent on context.

Note: if/when #1 is implemented, then the date would instead be more accurately described as the "anchor date" (from it to the past, or from it to the future).

[FlominatorTM]

At https://sourceforge.net/p/wikiblame/bug-reports/39/ Jodi Schneider suggested "Search history before (DD-MM-YYYY)"

[vlakoff]

It depends how you imagine it… It had confused me in the past too, now I got the habit of thinking "search backwards", so it starts from the latest date.

The suggestion "Search history before" sounds nice, I can't think of a better one.