automatic grunt dist

dist/css/bootstrap.css

@@ -3387,11 +3387,9 @@ input[type="button"].btn-block {
 }
 .collapse {
   display: none;
-  visibility: hidden;
 }
 .collapse.in {
   display: block;
-  visibility: visible;
 }
 tr.collapse.in {
   display: table-row;
@@ -4059,11 +4057,9 @@ select[multiple].input-group-sm > .input-group-btn > .btn {
 }
 .tab-content > .tab-pane {
   display: none;
-  visibility: hidden;
 }
 .tab-content > .active {
   display: block;
-  visibility: visible;
 }
 .nav-tabs .dropdown-menu {
   margin-top: -1px;
@@ -4110,7 +4106,6 @@ select[multiple].input-group-sm > .input-group-btn > .btn {
     height: auto !important;
     padding-bottom: 0;
     overflow: visible !important;
-    visibility: visible !important;
   }
   .navbar-collapse.in {
     overflow-y: visible;
@@ -5853,7 +5848,6 @@ button.close {
   font-size: 12px;
   font-weight: normal;
   line-height: 1.4;
-  visibility: visible;
   filter: alpha(opacity=0);
   opacity: 0;
 }