2010-06-01 : table generation was sometimes gen same value for valid_min and valid_max, fixed

2010-06-01 : table generation using %.4g instead of %.2g for valid min/max
2010-06-01 : new tables to reflect that
2010-06-01 : updated examples to work with abs min/max from tables
2010-06-01 : edited example to have only 1 file to edit when tweaking the data generation in test fortran/C samples.
2010-06-01 : changed cmor_dataset to trim input arguments, revelant mostly for calendar that was declared as wrong if it had extra spaces
2010-06-01 : fixed error message formating for value less or greater than valid_min/max, now uses nice formatting %.4g instead of unreadable for big numbers: %lf