Added Graham Jones' density for root time in birth-death model (when sample proportion is 1.0). Lets test it :-)
Added Graham Jones' density for root time in birth-death model (when sample proportion is 1.0). Lets test it :-)

git-svn-id: 67bc77c75b8364e4e9cdff0eb6560f5818674cd8@640 ca793f91-a31e-0410-b540-2769d408b6a1

armanbilge/BEAST_sandbox,svn2github/beast-mcmc,armanbilge/BEAST_sandbox,armanbilge/BEAST_sandbox,svn2github/beast-mcmc,svn2github/beast-mcmc,svn2github/beast-mcmc,armanbilge/BEAST_sandbox,armanbilge/BEAST_sandbox,svn2github/beast-mcmc