Revert "Revert "species id is compartment-specific for all versions of SBML http://www.cds.caltech.edu/~mhucka/publications/Hucka:SystemsBiologyMarkupLanguage:2008.pdf""
Revert "Revert "species id is compartment-specific for all versions of SBML http://www.cds.caltech.edu/~mhucka/publications/Hucka:SystemsBiologyMarkupLanguage:2008.pdf""

This reverts commit 6311e46d9db1928ce43e963c77b0eee08e091877.

theosysbio/means,lukauskas/means