Issue #1952064 by joshi.rohit100, yoroy, weekbeforenext, prabeen.giri, jonreid, nflowers1228, HaloFX, mparker17, paboden, babruix, sun: Shorten help text on user permissions/roles pages

Issue #2243439 by amitgoyal, jonreid, mark.labrecque, mpv, pwolanin, scor, cilefen, sun: Fix up docs about config file/database locations in settings.php and READMEs in directories

Issue #2252743 by amitgoyal, er.pushpinderrana, jonreid, lexfunk: Rename 'clone' to 'duplicate' for displays in Views UI.