Added first pass support for drawing colored trees using trait names. Fixed some problems in Node related to nodes with one child. Added a simple Node Decorator for debugging purposes.
Added first pass support for drawing colored trees using trait names. Fixed some problems in Node related to nodes with one child. Added a simple Node Decorator for debugging purposes.

CompEvol/beast2,CompEvol/beast2,tgvaughan/beast2,Anaphory/beast2,tgvaughan/beast2,Anaphory/beast2,CompEvol/beast2,CompEvol/beast2,Anaphory/beast2,tgvaughan/beast2,Anaphory/beast2,tgvaughan/beast2