update gnusocial markdown plugin

src/freedombone

 MICROBLOG_THEME_COMMIT='2816507545bb7e3da5b0a290692576b8d2ee335f'
 MICROBLOG_WELCOME_MESSAGE=$'<h1>Welcome to GNU Social – a federated microblog</h1><p>Another Freedombone site</p>'
 MICROBLOG_BACKGROUND_IMAGE_URL=
-MICROBLOG_MARKDOWN_REPO="https://github.com/bashrc/gs-markdown"
-MICROBLOG_MARKDOWN_COMMIT='9de4bf9250fe3ebd7b159ca587cf39f828f7bf4c'
+MICROBLOG_MARKDOWN_REPO="https://git.gnu.io/chimo/markdown.git"
+MICROBLOG_MARKDOWN_COMMIT='03c53942f94b3376f0946e6e1fe566cc21ccf232'
 
 # Domain name for hubzilla installation
 HUBZILLA_DOMAIN_NAME=
         return
     fi
 
+    MICROBLOG_PATH=/var/www/$MICROBLOG_DOMAIN_NAME/htdocs
+
     # update to the next commit
-    set_repo_commit /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins/Markdown "GNU Social Markdown commit" "$MICROBLOG_MARKDOWN_COMMIT" $MICROBLOG_MARKDOWN_REPO
+    set_repo_commit $MICROBLOG_PATH/local/plugins/Markdown "GNU Social Markdown commit" "$MICROBLOG_MARKDOWN_COMMIT" $MICROBLOG_MARKDOWN_REPO
 
     if grep -Fxq "install_gnu_social_markdown" $COMPLETION_FILE; then
         return
     fi
 
-    if [ ! -d /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins ]; then
-        mkdir -p /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins
+    if [ -d $MICROBLOG_PATH/local/plugins/Markdown ]; then
+        rm -rf $MICROBLOG_PATH/local/plugins/Markdown
     fi
 
-    cd /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins
+    if [ ! -d $MICROBLOG_PATH/local/plugins ]; then
+        mkdir -p $MICROBLOG_PATH/local/plugins
+    fi
+
+    cd $MICROBLOG_PATH/local/plugins
     git_clone $MICROBLOG_MARKDOWN_REPO Markdown
-    cd /var/www/$MICROBLOG_DOMAIN_NAME/htdocs/local/plugins/Markdown
+    cd $MICROBLOG_PATH/local/plugins/Markdown
     git checkout $MICROBLOG_MARKDOWN_COMMIT -b $MICROBLOG_MARKDOWN_COMMIT
 
-    microblog_config_file=/var/www/$MICROBLOG_DOMAIN_NAME/htdocs/config.php
+    microblog_config_file=$MICROBLOG_PATH/config.php
     if ! grep -q "addPlugin('Markdown'" $microblog_config_file; then
         echo "" >> $microblog_config_file
         echo "// Markdown settings" >> $microblog_config_file
         echo "GNU Social Markdown commit:$MICROBLOG_MARKDOWN_COMMIT" >> $COMPLETION_FILE
     fi
 
-    chown -R www-data:www-data /var/www/$MICROBLOG_DOMAIN_NAME/htdocs
+    chown -R www-data:www-data $MICROBLOG_PATH
 
     echo 'install_gnu_social_markdown' >> $COMPLETION_FILE
 }