Version 0.2

• added stacked area plots and streamgraphs
• enable user to colour branches of a tree with draw.clade
• bug fixes for #18, #19, #22, #26, #28, #29, #30

Version 0.1, release candidate 2

Fixes #15 and related issues - assignment of vertical position or radial angle to tree layout needed to be based on traversal order of internal nodes.

Version 0.1, release candidate 1

v0.1-rc1

fixes #14