Changed use of packstr everywhere (function redefined).

   null string otherwise
 o remove erroneous and unneeded #include <printf.h>

 o check for program_invocation_short_name

   are now macros that call the *mem functions
 o removed unneeded size argument from packstr

if they're present.

Converted packstr function to send string size as uint16_t (used to
	be uint32_t, which wasted space).

Modified src/api functions to build without warnings, mostly unused
	variables that were declared.
Changed un/packstr into separate unpackstr_ptr and unpackstr_xmalloc,
	the first returns a pointer into the buffer, the second allocates
	memory and copies the string into it. Updated src/test/pack-test.c
	accordingly.
Converted integers in various job/node/partition structures into
	uint32_t for ease of passing across network with API.

Modified src/api functions to build without warnings, mostly unused
	variables that were declared.
Changed un/packstr into separate unpackstr_ptr and unpackstr_xmalloc,
	the first returns a pointer into the buffer, the second allocates
	memory and copies the string into it.
Converted integers in various job/node/partition structures into
	uint32_t for ease of passing across network with API.

Modified src/api functions to build without warnings, mostly unused
	variables that were declared.
Changed un/packstr into separate unpackstr_ptr and unpackstr_xmalloc,
	the first returns a pointer into the buffer, the second allocates
	memory and copies the string into it.

Modified src/api functions to build without warnings, mostly unused
variables that were declared.

 o include inittypes.h if available (for systems w/out stdint.h)

 o include stdint.h from pack.h (which seems to require the defs anyhow)
 o conditionally include config.h to allow other conditional includes
 o moved main() from pack.c over to testdir

 o keep qsw.h in HEADERS always

   to vsnprintf after expanding some simple and added cases. Fixes many
   things.

 o add qsw.c,h only if --with-elan specified

 o added tests for functional rms and elan3 libs

Added string pack/unpack functions and set of tests. - Jette

Restructured QSW side of API.