Method expandImplicitHydrogens() now places hydrogens appropriately if no parity is specified for the atom (i.e. there are only wedge and hatch bonds, so the hydrogen ...
In method calculateAtomParityFromWedgesAndHatches() parity is not rounded. Method calculateAtomParityForLigandsInCIPOrder() returns null if it cannot calculate. Corrected grammar errors. Tidied comments and code. Formatting changes.