fixed: return values of functions when they fail added Exceptions in throw specifier fixed flushToDisk: it doubled the number of SnapShots fixed append: now testing for number of atoms added debug output, if file is not open, or wrong file mode cosmetic changes
fixed: return values of functions when they fail
added Exceptions in throw specifier
fixed flushToDisk: it doubled the number of SnapShots
fixed append: now testing for number of atoms
added debug output, if file is not open, or wrong file mode
cosmetic changes

tkemmer/ball,tkemmer/ball,tkemmer/ball,tkemmer/ball,tkemmer/ball,tkemmer/ball