Merge pull request #417 from Illyism/master

allow grouped buttons in actions

src/elements/input.less

@@ -286,14 +286,16 @@
   border-bottom-right-radius: 0px !important;
   border-right: none;
 }
-.ui.action.input > .button {
+.ui.action.input > .button,
+.ui.action.input > .buttons, {
   display: table-cell;
 
   border-top-left-radius: 0px;
   border-bottom-left-radius: 0px;
   white-space: nowrap;
 }
-.ui.action.input > .button > .icon {
+.ui.action.input > .button > .icon,
+.ui.action.input > .buttons > .button > .icon {
   display: inline;
   vertical-align: top;
 }