inclusion of autoconf socket #ifdefs

renamed set_slurm_addr_hton to slurm_set_addr_uint

adjusted arithmetic for packing wrapper routines

   slurmctld.h and api/slurm.h respectively.

   most of the stuff in these files did not belong in common, it has been
   moved elsewhere.

   these are the slurmctld-specific portions of what used to be
   src/common/bits_bytes.h

   what used to be src/common/bits_bytes.c

added pad to slurm_addr type char pad[16 - sizeof ( int16_t ) - sizeof (uint16_t) - sizeof (uint32_t) ] ;
explictly defined IPPROTO_XXX in socket() call

changed sizeof ( slurm_address ) to sizeof ( slurm_addr ) the size of the data type, not the size of the pointer pointing to the datatype

how about using log4c

changed variable type ssize_t in slurm_protocol_api.c to size_t
changed variable type ssize_t in slurm_protocol_api.h to size_t

fixed added set_slurm_addres_hton to slurm_protocol_util.c

had a return type of slurm_fd

Much has changed during development, changes to follow.

slurm_protocol_api.c			contains the programers interface.
slurm_protocol_interface.h 		defines the lower layer interface.
slurm_protocol_pack.c			packs messages.
slurm_protocol_util.c			contains utility functions used by the protocol