calling 'generate _newick' with an option to print the names of non-leaf nodes 
calling 'generate _newick' with an option to print the names of non-leaf nodes 

git-svn-id: 3eecc177e40867771373f5667ac62c9887fe2feb@17938 b4ddb4e3-33f1-0310-aa89-e703427ae9b8

solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn,solgenomics/sgn