Changeset 4264

Add the script make_O32014.bash, which creates a 2014 file to be provided to
ce0l as previous year file ("climoz_m.nc") when creating a 2015 file
("climoz_LMDZ.nc") for a scenario.
The 2014 file created by this script is identical to the historical one, except
the last record (december) which has been modified to vanish the jump on Jan.
1st that would appear without modifications, caused by the fact that the
historical Jan. 2015 field was not available, so january 2014 was used instead.