Fixed up some longstanding bugs (predating the tvbuffification)
discovered during regression testing of the tvbuffification.
svn path=/trunk/; revision=3661
into a "packet-smb-browse.h" header file, and have modules that import
those routines include "packet-smb-browse.h" rather than declaring the
routines themselves; do the same for routines exported from
"packet-smb-logon.c".
Make routines and arrays not exported static, and make routines that
return a true/false return value "gboolean" rather than "guint32".
svn path=/trunk/; revision=3147
Guy Harris