Button 2: Update default block placeholder CSS selector. Bump version number.

button-2/editor-blocks.css

@@ -25,7 +25,7 @@ Description: Gutenberg Block Editor Styles
 }
 
 .edit-post-visual-editor .editor-block-list__block,
-.editor-default-block-appender input[type="text"].editor-default-block-appender__content {
+.editor-default-block-appender textarea.editor-default-block-appender__content {
 	color: #777;
 	font-family: Lato, Helvetica, sans-serif;
 	font-size: 16px;

button-2/style.css

@@ -4,7 +4,7 @@ Theme URI: http://wordpress.com/themes/button-2/
 Author: Automattic
 Author URI: http://automattic.com
 Description: A stylish, lighthearted theme for crafters, hobbyists, and creatives.
-Version: 2.1.4-wpcom
+Version: 2.1.5-wpcom
 License: GNU General Public License v2 or later
 License URI: http://www.gnu.org/licenses/gpl-2.0.html
 Text Domain: button