dir.c: Fixed double slash issue.

dir.c:	Fixed double slash issue.
includes.h: Changed to ifdef FAST_SHARE_MODES.
ipc.c:  Changed lp_workgroup() to myworkgroup.
loadparm.c:  Added new shared mem parameters. Added Luke's fix.
locking.c: Rewrite to do share modes better (both fast and slow modes).
nameannounce.c:  Changed lp_workgroup() to myworkgroup. Added Luke's fix.
nameconf.c:  Changed lp_workgroup() to myworkgroup.
namedbname.c:  Improved debug.
namedbserver.c:  Changed lp_workgroup() to myworkgroup.
namedbsubnet.c:  Added Luke's fix - rewritten somewhat.
namedbwork.c:  Changed lp_workgroup() to myworkgroup.
nameelect.c:  Added Luke's fix - rewritten somewhat.
nameresp.c:  Stoped shadowing global.
nameserv.c:  Added Luke's fix - Improved debug.
nameservreply.c:  Improved debug.
namework.c:  Changed lp_workgroup() to myworkgroup.
nmbd.c:  Added Luke's fix - Changed lp_workgroup() to myworkgroup.
pipes.c:   Changed lp_workgroup() to myworkgroup.
proto.h:   Added Luke's fix, added smb_shm_ proto's.
reply.c:  Changed lp_workgroup() to myworkgroup.
server.c:  Rewrite to do share modes better (both fast and slow modes).
shmem.c:  Rewrite to do share modes better (both fast and slow modes).
smb.h:  Rewrite to do share modes better (both fast and slow modes).
status.c:  Rewrite to do share modes better (both fast and slow modes).
trans2.c:  Fixed double slash issue.
util.c:  Tidied up, created myworkgroup.
Jeremy Allison (jallison@whistle.com).