Merged latest changes from netcdf-cmake branch.
Includes a few windows fixes, plus the skeleton
for 'make dist' and 'make distcheck' support
in cmake-based builds.



git-svn-id: https://sub.unidata.ucar.edu/netcdf/trunk@3101 2e3060e4-1ed8-cf1f-9cc2-9586e844a556