patch_TITLE_CACHE

diff --git a/etherpad/src/plugins/twitterStyleTags/hooks.js b/etherpad/src/plugins/twitterStyleTags/hooks.js
index 003bc32..e49439e 100644
--- a/etherpad/src/plugins/twitterStyleTags/hooks.js
+++ b/etherpad/src/plugins/twitterStyleTags/hooks.js
@@ -10,7 +10,8 @@ function handlePath() {
 function padModelWriteToDB(args) {
   /* Update tags for the pad */
 
-  var new_tags = args.pad.text().match(new RegExp("#[^,#=!\\s][^,#=!\\s]*", "g"));
+  var atext = args.pad.text();
+  var new_tags = atext.match(new RegExp("#[^,#=!\\s][^,#=!\\s]*", "g"));
   if (new_tags == null) new_tags = new Array();
   for (i = 0; i < new_tags.length; i++)
     new_tags[i] = new_tags[i].substring(1);
@@ -33,6 +34,7 @@ function padModelWriteToDB(args) {
     else
       sqlobj.insert("PAD_TAG_CACHE", {PAD_ID: args.padId, TAGS: new_tags.join('#')});
 
+	/* Remove and recreate all involved tags, to make sure no tags are left behind? */
     sqlobj.deleteRows("PAD_TAG", {PAD_ID: args.padId});
 
     for (i = 0; i < new_tags.length; i++) {
@@ -44,4 +46,31 @@ function padModelWriteToDB(args) {
       sqlobj.insert("PAD_TAG", {PAD_ID: args.padId, TAG_ID: tag_row['ID']});
     }
   }
+
+
+  /* Update title cache for the pad */
+  var title_text = atext.replace(/(^\s+|\s+$)/g,'');
+  var title_rows = title_text.split(/[\n\r]+/); /* linefeed issues? */
+  var title;
+  for (var i=0; i<title_rows.length; i++) {
+    var textrow = title_rows[i].length;
+	if (textrow.length) {
+	  title = textrow;
+	  if (title.length>80-3) title = title.substring(0,80-1-3)+'...';
+	  break;
+	}
+  }
+
+  var old_title_row = sqlobj.selectSingle("PAD_TITLE_CACHE", { PAD_ID: args.padId });
+  var old_title_str = '';
+  if (old_title_row !== null)
+    old_title_str = old_title_row['TITLE'];
+  if (old_title_str != title) {
+    /*log.info({message: 'Updating cached title', title:title, old_title_str:old_title_str});*/
+    if (old_title_row)
+      sqlobj.update("PAD_TITLE_CACHE", {PAD_ID: args.padId }, {TITLE: title});
+    else
+      sqlobj.insert("PAD_TITLE_CACHE", {PAD_ID: args.padId, TITLE: title});
+  }
+
 }
\ No newline at end of file
diff --git a/etherpad/src/plugins/twitterStyleTags/main.js b/etherpad/src/plugins/twitterStyleTags/main.js
index 34d5d85..a903b42 100644
--- a/etherpad/src/plugins/twitterStyleTags/main.js
+++ b/etherpad/src/plugins/twitterStyleTags/main.js
@@ -35,6 +35,11 @@ function install() {
    TAGS: 'varchar(1024) collate utf8_bin not null',
   });
 
+ sqlobj.createTable('PAD_TITLE_CACHE', {
+   PAD_ID: 'varchar(128) character set utf8 collate utf8_bin unique not null references PAD_META(ID)',
+   TITLE: 'varchar(80) collate utf8_bin not null',
+  });
+
 }
 
 function uninstall() {