v0.3.0

• improves UglifyJS mangling (0fc9d27)
• updates more dependencies (046c76a)
• updates to webpack 2 (b3f39ff)
• updates web pack middleware (3b2beb7)
• updates react-router to v3 (af5bb1a)
• adds "anchor" class to title links (3357496)
• fixes hash links (must use react-router Link component) (199fed9)
• added second section to example code (f1890f3)
• makes check emoji appear on black backgrounds (2e70aae)
• updates d3plus dependencies (e0dbdec)