util.c: StrCaseCmp and StrnCaseCmp terminated incorrectly, giving false

util.c: StrCaseCmp and StrnCaseCmp terminated incorrectly, giving false
answers when a string was partially identical.  this issue is still
outstanding, and needs to be investigated further.

loadparm.c: added lp_logon_path() parameter.
ipc.c: in NetUserGetInfo, lp_logon_path() can be returned instead of always
specifying \\SAMBA_SERVER\HOMES (which may not necessarily exist).
it is now possible to specify lp_logon_path() as \\ARBITRARY_SERVER\%U,
just like NT server can.  the default is \\SAMBA_SERVER\HOMES, just like
it used to be.

lkcl
(This used to be commit d5b6ad7cb87d6b1a9342f027ac4f57ffdb54b4f3)