Trunk: solve Issue 454: BEAUti: all the taxon sets are deleted when link/unlink tree
Trunk: solve Issue 454: BEAUti: all the taxon sets are deleted when link/unlink tree
4ment/beast-mcmc,codeaudit/beast-mcmc,maxbiostat/beast-mcmc,4ment/beast-mcmc,adamallo/beast-mcmc,maxbiostat/beast-mcmc,4ment/beast-mcmc,beast-dev/beast-mcmc,maxbiostat/beast-mcmc,beast-dev/beast-mcmc,4ment/beast-mcmc,adamallo/beast-mcmc,adamallo/beast-mcmc,codeaudit/beast-mcmc,codeaudit/beast-mcmc,beast-dev/beast-mcmc,codeaudit/beast-mcmc,4ment/beast-mcmc,beast-dev/beast-mcmc,maxbiostat/beast-mcmc,codeaudit/beast-mcmc,maxbiostat/beast-mcmc,adamallo/beast-mcmc,adamallo/beast-mcmc,codeaudit/beast-mcmc,beast-dev/beast-mcmc,maxbiostat/beast-mcmc,4ment/beast-mcmc,beast-dev/beast-mcmc,adamallo/beast-mcmc