Created by: jmar777
Because margin-bottom
always collapses on legend
elements in webkit, the element following the legend
must be responsible for vertical spacing. A fix for this had already been applied in bootstrap for .form-horizontal
forms, but stacked forms don't benefit from that.
This pull request simply moves the fix out of the .form-horizontal
specific styling, and applies it to all .control-group
elements that immediately follow a legend
.