Bugs in Molsketch 0.3.1 "Lithium-6"

Unfortunately, version 0.3.1 contains a few rather nasty and severe bugs, which apparently escaped my inspection. Hence, it is probably preferable to use the next version's snapshot instead for the time being. There is still some work that will go into re-activating the molecule library in that particular version.

Any volunteer help in testing and finding out bugs do not make it into the final version is greatly appreciated!