CRAN compatibility and changes to allow setting the qfa.fit argument inocguess=NULL to allow estimation of inoculum density AND inoculum time from the first photograph of a culture with a detectable signal.

git-svn-id: svn://svn.r-forge.r-project.org/svnroot/qfa@609 edb9625f-4e0d-4859-8d74-9fd3b1da38cb