twitter/bootstrap — pull request #6911 by jamesmfriedman (2013-02-13 03:43:52+00:00)
Title: Removed hardcoded border radii.

I combed the LESS files for all instances of a hardcoded border radius that should correspond to one @baseBorderRadius, @borderRadiusSmall, or @borderRadiusLarge and changed them to their appropriate variable.

I don't see a reason why these shouldn't be attached to a variable. Basically allows a Metro loving designer to square off the site a bit quicker.