[io] bug for time series files in spherical coordinates (LAT/LON)

I have tested the feature !108 (merged) (export to time series) for a simple world model case. forum_HIST.zip

I am using LAT/LON projection in my model:

SPATIAL PROJECTION TYPE             = 3
RESULT FILE IN LONGITUDE-LATITUDE = YES
GEOGRAPHIC SYSTEM                  = 5

for the the history files:

TIME SERIES COORDINATES FILE 1 = 'station.in'

I was using first LAT/LON coords but I had weird results (all really similar curves for locations throughout the world). I have translated the coordinates into the MERCATOR projection in the station.in file and now it seems to work quite well: the results seem correct.

@alexander.breugem, I think a check for SPHERI could be intergated here in grehis_autop.f.

Let me know what you think about this.