Trunk: merge r2871 from branch.
Trunk: merge r2871 from branch.
evolvedmicrobe/beast-mcmc,danieljue/beast-mcmc,evolvedmicrobe/beast-mcmc,evolvedmicrobe/beast-mcmc,danieljue/beast-mcmc,danieljue/beast-mcmc,evolvedmicrobe/beast-mcmc,danieljue/beast-mcmc,danieljue/beast-mcmc,evolvedmicrobe/beast-mcmc