Multi-line text can be justified horizontally using the halign parameter.
Added support for bidirectional text and composite Unicode glyphs
Added plotmath support
Added coord_curvedpolar for curved polar axis labels
Labels on single points will now be placed on paths to allow them to curve in polar co-ordinates. This means geom_textpath can be used as a drop-in for geom_text in most circumstances.
Added geom_textcontour and geom_textdensity2d for labelled contour plots