Partition data needs to conform to new constructors. Tests to follow soon

git-svn-id: http://beast-mcmc.googlecode.com/svn@6534 ca793f91-a31e-0410-b540-2769d408b6a1
small fixes after testing

git-svn-id: http://beast-mcmc.googlecode.com/svn@6535 ca793f91-a31e-0410-b540-2769d408b6a1
added extra boolean attribute that is usefull for simulator. Should not alter the default BEAST behaviour which is to overwrite tree heights with dates or ultrametric heights

git-svn-id: http://beast-mcmc.googlecode.com/svn@6536 ca793f91-a31e-0410-b540-2769d408b6a1
marked changes in Changelog

git-svn-id: http://beast-mcmc.googlecode.com/svn@6537 ca793f91-a31e-0410-b540-2769d408b6a1