Fixes #6174: Caret alignment in small and mini buttons

docs/assets/css/bootstrap.css

@@ -3744,8 +3744,6 @@ input[type="submit"].btn.btn-mini {
   margin-left: 0;
 }
 
-.btn-mini .caret,
-.btn-small .caret,
 .btn-large .caret {
   margin-top: 6px;
 }
@@ -3756,6 +3754,11 @@ input[type="submit"].btn.btn-mini {
   border-left-width: 5px;
 }
 
+.btn-mini .caret,
+.btn-small .caret {
+  margin-top: 8px;
+}
+
 .dropup .btn-large .caret {
   border-bottom-width: 5px;
 }

less/button-groups.less

@@ -164,8 +164,6 @@
   margin-left: 0;
 }
 // Carets in other button sizes
-.btn-mini .caret,
-.btn-small .caret,
 .btn-large .caret {
   margin-top: 6px;
 }
@@ -174,6 +172,10 @@
   border-right-width: 5px;
   border-top-width:   5px;
 }
+.btn-mini .caret,
+.btn-small .caret {
+  margin-top: 8px;
+}
 // Upside down carets for .dropup
 .dropup .btn-large .caret {
   border-bottom-width: 5px;