Enclosed HDF5-Parallel checks in a block so that they are not checked on Windows.
Merge branch 'master' of http://github.com/Unidata/netcdf-c
Added checks for CURLOPT_USERNAME and CURLOPT_PASSWORD.  If they are not found, CURLOPT_USERPWD is used instead.  This is important because, on some Windows systems, libcurl does not provide CURLOPT_USERNAME or CURLOPT_PASSWORD.
Added checks for CURLOPT_USERNAME and CURLOPT_PASSWORD to configure.ac