v3.3.5 - update to work with CDK 1.5.13 with the new Depiction module

v2.9 - Updated to the new package structure where the CDK libs are removed.
As a result, this package now depends on the rcdklibs package

v2.8.1 - Fixed typos in the docs

v2.8 - Updated code to provide accessors for atoms and bonds of a molecule. 
Also provide methods to access atom and bond properties. Currently, setters
for these objects are not provided

v2.7 - Removed support for JChemPaint due to it being in flux at this point. Also 
removed support for viewing tables of 3D structures. Restructured the descriptor
functions to utilize descriptor names and i general make descriptor calculations
more R-like