Ability to ``freeze'' or specify the layout of a substructure of
a molecule and request that Ogham layout the rest of the molecule. This
use useful for preserving the orientation of the cores of combinatorial
libraries or the matching atoms of a substructure search.
Add support for specifying substitution preferences via the
ring template library.
Increased ring template dictionary, including both style and
orientation preferences. Additionally, a number of existing ring
templates have been enhanced with substitution preferences.
Improved crinkling of acyclic chain systems.
New clash resolution protocol that allows stretching of
acyclic bonds between two ring systems.
The bond lengths of bonds to non-depiction hydrogens has now
been reduced to one half, to avoid cluttering depictions that include
explicit hydrogens.
Improvements to the documentation and minor bug fixes.
