Backport of the "Bugfix checklist" panel from trunk. Each module's page gets

a new section on the right panel containing three links: 
- httpd changelog 
- Bugzilla issues related to the module
- Open a bugzilla issue related to the module
This commit also fixes a minor inconsistency for the "comments" link, that is 
now always displayed under "See also"



git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/2.4.x@1741814 13f79535-47bb-0310-9956-ffa450edef68