Adds multi-levels blockquotes support by using > at the beginning of lines.

Textile is preserved inside quoted text.

git-svn-id: http://redmine.rubyforge.org/svn/trunk@1479 e93f8b46-1217-0410-a6f0-8f06a7374b81

public/stylesheets/jstoolbar.css

@@ -84,6 +84,12 @@
 .jstb_ol {
 	background-image: url(../images/jstoolbar/bt_ol.png);
 }
+.jstb_bq {
+	background-image: url(../images/jstoolbar/bt_bq.png);
+}
+.jstb_unbq {
+	background-image: url(../images/jstoolbar/bt_bq_remove.png);
+}
 .jstb_pre {
 	background-image: url(../images/jstoolbar/bt_pre.png);
 }