Update server.c, now it compiles
Check that we have an acceptable version level for hwloc during configure. Complete implementation of bfrop support for the various types
Add missing callback stubs that prevents linking of the server
Fix pmix.h
Fix value management macroses.
Update client.c
Merge remote-tracking branch 'pmix/master'

Conflicts:
	src/buffer_ops/copy.c
	src/buffer_ops/pack.c
	src/buffer_ops/print.c
	src/buffer_ops/unpack.c
Fix duplications
Implement non-blocking PMIx_get. Add convenience function to free storage in pmix_value_t