Log Message:
Update to 0.12.10

Changelog:
Version 0.12.10
        GCrystal:
                * show only atoms from the first crystal when loading a CIF file
                with several structures.
                * don't crash when loading a file with invalid atoms.
                * don't display two atoms at the same position.
                * don't loose the radius ratio on serialization.
        Other:
                * fix build with most recent glib-2.0 and xulrunner.
                * enhanced translation: de.