ROL-1992 fix security error for blogroll opml import page.

git-svn-id: https://svn.apache.org/repos/asf/roller/trunk@1577966 13f79535-47bb-0310-9956-ffa450edef68
Created flatter OPML bookmark import (no longer creating bookmark subfolders, as they no longer exist), Sonar fixes.

git-svn-id: https://svn.apache.org/repos/asf/roller/trunk@1578087 13f79535-47bb-0310-9956-ffa450edef68
Updated template guide with new bookmark/bookmark folder info.

git-svn-id: https://svn.apache.org/repos/asf/roller/trunk@1578091 13f79535-47bb-0310-9956-ffa450edef68
fix bug of duplicate new bookmark items being created with each new blog.

git-svn-id: https://svn.apache.org/repos/asf/roller/trunk@1578345 13f79535-47bb-0310-9956-ffa450edef68