Revert drag handle changes.

Thanks to Keelan !

Related #2704

client/components/swimlanes/swimlaneHeader.jade

@@ -16,7 +16,6 @@ template(name="swimlaneFixedHeader")
     unless currentUser.isCommentOnly
       a.fa.fa-plus.js-open-add-swimlane-menu.swimlane-header-plus-icon
       a.fa.fa-navicon.js-open-swimlane-menu
-      a.swimlane-header-menu-handle.handle.fa.fa-arrows.js-swimlane-header-handle
 
 template(name="editSwimlaneTitleForm")
   .list-composer

client/components/swimlanes/swimlanes.js

@@ -56,7 +56,7 @@ function initSortable(boardComponent, $listsDom) {
   $listsDom.sortable({
     tolerance: 'pointer',
     helper: 'clone',
-    handle: '.js-list-handle',
+    handle: '.js-list-header',
     items: '.js-list:not(.js-list-composer)',
     placeholder: 'list placeholder',
     distance: 7,
@@ -156,8 +156,7 @@ BlazeComponent.extendComponent({
             'input',
             'textarea',
             'p',
-            '.js-list-handle',
-            '.js-swimlane-header-handle',
+            '.js-list-header',
           ];
           if (
             $(evt.target).closest(noDragInside.join(',')).length === 0 &&

client/components/swimlanes/swimlanes.styl

@@ -50,14 +50,6 @@
       margin-left: 5px
       margin-right: 10px
 
-    .swimlane-header-menu-handle
-      position: absolute
-      padding: 7px
-      top: 50%
-      transform: translateY(-50%)
-      left: 300px
-      font-size: 18px
-
 .list-group
   height: 100%