============
Bugs fixed
----------
- Spurious error when running unit tests with Python 3 and numpy
installed
- Missing mapping to ggplot2's `geom_dotplot` function
- Warnings are not longer printed (see Changes below)
Changes
-------
- Bumped target version of ggplot2 to 0.9.3.1
- Warnings are not longer printed. The C-level function in R became
hidden in R-3.0, and the cost of an R-level check/print is relatively
high if the R code called is very short. This might evolve into
printing warnings only if interactive mode in Python (if this can
be checked reliably).