- nextGamma(alpha, lambda) in Colt needs to be called with 1/scale instead of scale - also replaced log(x/scale) by log(x) - log(scale) to avoid numerical errors when evaluating very small values from a gamma distribution
- nextGamma(alpha, lambda) in Colt needs to be called with 1/scale instead of scale
- also replaced log(x/scale) by log(x) - log(scale) to avoid numerical errors when evaluating very small values from a gamma distribution

git-svn-id: 67bc77c75b8364e4e9cdff0eb6560f5818674cd8@5411 ca793f91-a31e-0410-b540-2769d408b6a1

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