Site plugin version 3 working

Disable slow report plugin
Add site to ditribution management
Drop reports in marytts-jungle
Maven Site Progress 1

- Add some new pages in documentation, PAVOQUE, Legal Information.
- Update site.xml
Maven Site Progress 2

- Remove mary architecture pages
- Add some files about Download
fix links in index
link to anchors in doc overview
drop obsolete menu link to marytts architecture

because the comment format triggers a warning in doxia
re-enable aggregate javadoc report and link to it
fix links
upgrade maven-project-info-reports-plugin from 2.2 to 2.7
fix download navigation (preserving "Mary" vs. "MARY" inconsistency)
include Anna Hunecke's dimploma thesis directly
tweak structure in PAVOQUE project description
add (old) reference publications directly
add page titles
restructure to match site layout on legacy site
fix links