Update README.md
Update README.md
Update README.md

Fixed broken URL to http://uic-evl.github.io/omegalib/cavevoc/html/namespacecavevoc.html
UPDATE: Omicron.
FIX: linux build(WIP)
Merge branch 'osg-src' of https://github.com/uic-evl/omegalib into osg-src
FIX: new osg now works on linux