add getUnparsedRestArg method in ArgInfo class
add GeneFlatFile and GeneFlatFileEntry classes
add IsGzip class
add test for GeneFlatFile class
change include for Darwin
fix for gcc 4.4.7
bump version after

  * added GeneFlatFile class
  * added getUnparsedRestArg method in ArgInfo class
  * added IsGzip class
  * various compilation fixes