[misc] Apply xar:format
[misc] Use a stable version for parent. Add issue and distribution management info.
[misc] Apply new XAR format (using export from 6.1 which should be compatible with older versions).
PRESENT-32: Cannot view the presentation if the author doesn't have PR
* The presentation should be the current document so there's no need to pass it's name from Velocity to Groovy using protected API.