JPSSnagg

nagg_get_granules.c
	added comment identifying nagg_get_granules() function parameters for return values.
nagg_write_granules.c
	Fixed bug with icc (parameter for H5LRget_region_info() was int, needed to be size_t)
	Replaced product_name with dpid in product_info_t structure.
	Internal index of separate geoproduct will be nproducts-1 (0 based index) with no need
        for product id.
        Product name will be obtained from granule when needed.

Tested on jam and koala with gcc and icc compilers.