Additions to .gitignore
Extend trait.plot() to more than binary traits.

State values can now be 0:n or 1:n.
Added phylogram shape to trait.plot()

Rightwards, rectangular shape.
Doesn't allow for class/group yet.
(Also, small fix to auto state labels.)
Modified trait.plot() example.

Ternary trait and phylogram now use the original simulated tree.
Examples of naming traits and states.
Legend bugfix

Wasn't working when traits had equal numbers of states.
Group label positioning bugfix

(Wasn't moving out with more traits.)
More for phylogram shape in trait.plot()

Groups allowed now (the code was already there).
Merge branch 'master' into trait.plot
Merge pull request #4 from eeg/trait.plot

Extensions to trait.plot()