Adding new numerical method for estimating intrinsic growth rate (fast, model-free fitness estimate).  Updating demo to generate range of nAUC fitnesses.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/qfa@624 edb9625f-4e0d-4859-8d74-9fd3b1da38cb
Bumping version number

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/qfa@625 edb9625f-4e0d-4859-8d74-9fd3b1da38cb