Clean up .button and .button[disabled] CSS classes, add spinner and gray-out buttons after clicking Publish or Update post.

git-svn-id: https://develop.svn.wordpress.org/trunk@11874 602fd350-edb4-49c9-b593-d223f7449a82

wp-admin/wp-admin.dev.css

@@ -325,6 +325,7 @@ form p.submit a.cancel:hover {
 #publishing-action {
 	text-align: right;
 	float: right;
+	line-height: 23px;
 }
 
 #post-body #minor-publishing {
@@ -406,6 +407,7 @@ a.button-secondary {
 	line-height: 15px;
 	padding: 3px 10px;
 	white-space: nowrap;
+	-webkit-border-radius: 10px;
 }
 
 #doaction,
@@ -1896,7 +1898,8 @@ input#link_url {
 	padding: 0 0 5px 10px;
 }
 
-#media-buttons img {
+#media-buttons img,
+#submitpost #ajax-loading {
 	vertical-align: middle;
 }
 
@@ -3314,6 +3317,10 @@ label,
 	vertical-align: middle;
 }
 
+#misc-publishing-actions label {
+	vertical-align: baseline;
+}
+
 .plugin-update-tr .update-message {
 	margin: 5px;
 	padding: 3px 5px;