! For attachment limits below 1MB, use KB like we always used to, for attachment limits above 1MB, round to MB like we were doing but with a proper language string for it this time.

Signed-off-by: Peter Spicer <sleeping@myperch.org>
Merge pull request #1300 from Arantor/release-2.1

! For attachment limits below 1MB, use KB like we always used to, for at...