Add new projections from cf-1.4 to netcdf driver
CF-1.4 has added 4 ogr spatial reference support projections. These have been added. Lambert Cylindrical Equal Area was just added to the current CEA set function. There is a small issue in Mercator, as the osr function SetMercator() takes only the scale factor, where as in CF-1.0 the user may define the scale_factor_at_projection_origin or standard_parallel. at this time standard_parallel is not supported at all( ticket #3324), although I did add the defintion to the header file, along with other grid mapping attributes that were updated. I am trying to chip away at some issues with the netcdf driver to help some issues in my app, but I don't get much feedback on CF convention's relationship with the driver from the list, so I am guessing CF and gdal tags should both be supported.