Update showdown to 1.9.1

Author: ahornace

opengrok-web/pom.xml

@@ -120,6 +120,11 @@ Portions Copyright (c) 2018, 2020, Chris Fraire <[email protected]>.
             <artifactId>jquery</artifactId>
             <version>3.5.1</version>
         </dependency>
+        <dependency>
+            <groupId>org.webjars.npm</groupId>
+            <artifactId>showdown</artifactId>
+            <version>1.9.1</version>
+        </dependency>
         <dependency>
             <groupId>org.glassfish.jersey.test-framework.providers</groupId>
             <artifactId>jersey-test-framework-provider-grizzly2</artifactId>

opengrok-web/src/main/java/org/opengrok/web/Scripts.java

@@ -114,7 +114,7 @@ public String toHtml() {
         putjs("jquery-tablesorter", "js/jquery-tablesorter-2.31.3", 12);
         putjs("tablesorter-parsers", "js/tablesorter-parsers-0.0.2", 13, true);
         putjs("searchable-option-list", "js/searchable-option-list-2.0.14", 14);
-        putjs("utils", "js/utils-0.0.37", 15, true);
+        putjs("utils", "js/utils-0.0.38", 15, true);
         putjs("repos", "js/repos-0.0.2", 20, true);
         putjs("diff", "js/diff-0.0.4", 20, true);
         putjs("jquery-caret", "js/jquery.caret-1.5.2", 25);

opengrok-web/src/main/webapp/js/showdown-1.8.4.min.js

@@ -1483,7 +1483,7 @@ function init_markdown_converter() {
     $('[data-markdown]').each(function () {
         var $that = $(this);
         $.script.loadScript('js/xss-0.2.16.min.js').done(function () {
-            $.script.loadScript('js/showdown-1.8.4.min.js').done(function () {
+            $.script.loadScript('webjars/showdown/1.9.1/dist/showdown.min.js').done(function () {
                 $that.find('.markdown-content[data-markdown-download]').each(function () {
                     var $dataMarkdownDownloadEl = $(this);
                     if (converter === null) {