Rearranged the lists a bit, added 404 page

Added 404 Page, Rearranged the lists so now there is a major/minor
list-navigation. Added 1.4.2 list. Added changes from before the list
had its own site to the end of the 1.4.6/1.4.7 list. Fixed up
inconsistencies with the head images on each list's page. Fixed nav.css
to my preferred style. Others will follow next update. Added redirects
for 1.4 and 1.5 in the list directory with index pages for both. Added
Changelog for 1.3.2, but have not added the actual 1.3.2 list yet.