remove examples
documentation modifications per Pat Shafto email to Dan Lovell on 2013-10-11
add content to download section
modify Downloads section
change authors list
merge mods_per_vkm
add publications
add NOTICE to *.h
remove old use cases
mods per VKM
change CrossCat logo to Baxter's new version
make sure user executing is not ruby
BUGFIX: install missing requirements
update README