fixing wording in /downloads and duplicate content in some N&N
support linking to specific tab on download pages
JBIDE-16608 new content for Central tabs & updated links for JBTIS/JBDSIS downloads
fixing scrolling on tab selection in /downloads
Added missing jboss tools/IS downloads and handle entries without downloadsize and a bit better info in errors
handle missing size and tar.gz prefix
add missing soa tools
Add download links for all eclipse versions
Reordering features on side navbar and fixing cropped titles
Fixing tab selection in top navbar