Update documentation for building with HDF4 and with Fortran

git-svn-id: https://sub.unidata.ucar.edu/netcdf/trunk@3196 2e3060e4-1ed8-cf1f-9cc2-9586e844a556
Oops, forgot to remove --disable-shared from build example

git-svn-id: https://sub.unidata.ucar.edu/netcdf/trunk@3197 2e3060e4-1ed8-cf1f-9cc2-9586e844a556