Removing all of the indentedTree model.  It didn't use svg at all and wasn't a chart, so didn't really line up with nvd3's purpose.....   plus it was a poor implementation of a tree compared to the plethora of existing jquery/angular/etc plugins that exist.  People should use something better instead:  http://plugins.jquery.com/tag/tree/ or ng-repeat or whatever.
Include logic to limit axis ticks to  the number of data points for small data sets, to avoid multiple ticks with the same value.   This fixes all graphs and both Y and X axis.   Fixes pull request  https://github.com/novus/nvd3/pull/643

Also cleaned up just a bit of code.
Refactor nv.utils to include comments, consistent formatting, and a few logic rewrites to make code more readable.
Make stackedArea example use 100% of the frame like the other examples, and fix a defect where it was causing an exception in scatter model that it uses.
Fix multi bar chart so that labels show properly, add ability to put extra padding for X axis label too and not just Y axis.
Make X axis labelDistance affect default number instead of just replacing it to match the way Y axis already worked.
Add ability to specify interpolation type for multi chart, from pull request https://github.com/novus/nvd3/pull/597

I left out the line coloring part, not sure what that was about since they're already colored
Merge branch 'development' into gh-pages
Build latest files for example site.
Fix pie chart tooltip, and make example show a full donut instead of half donut.
Merge branch 'master' into development
Merge branch 'gh-pages' into development
Playing with concepts to make pie/donut charts more awesome...
Set title from chart definition, fix multiple titles showing up, split donut and pie into 2 different example pages.
Merge branch 'master' into development
Trying out a refactor on how options are defined in the model to cut down on boilerplate  and to start using an object so we can expose things more easily
Have donut chart automatically center the title, and give a way to move it if they want.
Make pieChart automagically inherit options from pie model with the ability to override if needed.   Make my new util functions more automatic.
Make the example site look a little better, don't fix position header, fix pie example, break base examples to separate section.
Add a class to the SVG when the chart initializes to allow us to contain global CSS and not affect other parts of a site.