javadbchem release

(original date 2013-9-14) A short message only indirectly related to nmrshiftdb2 - I made the chemical database system behind nmrshiftdb2 a project in it's own, to be found on sourceforge.net. This can serve as a chemical database "cartridge", but works a bit differently from the common systems. It is possible to assign properties to bonds and atoms on the database level using referential integrities. If anybody is interested in using this, I would provide any assistence which might be necessary. The principles are tested, since used in nmrshiftdb2, but the build system of the new project might need some tuning.