Log Message:
Updated R-ncdf to 1.6, since the old distfile is no longer available.

Release 1.6 (2006-06-19) adds various bug fixes, plus support for making
dimensions WITHOUT dimvars (coordinate variables), although I think this
is a bad idea in general.  ALSO, the default behavior for put.var.ncdf
with unlimited variables and NO specified start and count parameters has
changed!  Before, the default was to append to the end of the existing
variable.  Now, the default is to assume a start of 1 along each
dimension, and a count of the current length of each dimension.  This
really can be ambiguous when using an unlimited dimension. I always
specify both start and count when writing to a variable with an
unlimited dimension, and suggest you do as well.  I make require this in
a future release, as it seems to cause people problems.