Reorder popup fontStyles buttons.

common/head_tag.html

@@ -42,20 +42,6 @@ api.addToolbarPopupMenuOptionsCallback(() => {
       label: "strikethrough_button"
   };
 });
-api.addToolbarPopupMenuOptionsCallback(() => {
-  return {
-      action: "floatleft",
-      icon: "indent",
-      label: "float_left_button"
-  };
-});
-api.addToolbarPopupMenuOptionsCallback(() => {
-  return {
-      action: "columns",
-      icon: "columns",
-      label: "columns_button"
-  };
-});
 api.addToolbarPopupMenuOptionsCallback(() => {
   return {
       action: "superscript",
@@ -70,6 +56,20 @@ api.addToolbarPopupMenuOptionsCallback(() => {
       label: "subscript_button"
   };
 });
+api.addToolbarPopupMenuOptionsCallback(() => {
+  return {
+      action: "floatleft",
+      icon: "indent",
+      label: "float_left_button"
+  };
+});
+api.addToolbarPopupMenuOptionsCallback(() => {
+  return {
+      action: "columns",
+      icon: "columns",
+      label: "columns_button"
+  };
+});
 
 api.modifyClass("controller:composer", {
   actions: {