Web updates for 1.77. 
Updated copyright notice.
Raised claimed system requirements.


git-svn-id: http://svn.berlios.de/svnroot/repos/oolite-linux/http@5613 127b21dd-08f5-0310-b4b7-95ae10353056
Self-host downloads for website.

git-svn-id: http://svn.berlios.de/svnroot/repos/oolite-linux/http@5667 127b21dd-08f5-0310-b4b7-95ae10353056
Belatedly updated Sparkle feed for 1.77.

git-svn-id: http://svn.berlios.de/svnroot/repos/oolite-linux/http@5668 127b21dd-08f5-0310-b4b7-95ae10353056