Revision 98

Split inter_barxy.f : one procedure per module, one module per
file. Grouped the files into a directory.

Split orbite.f.

Value of raz_date read from the namelist is taken into account
(resetting the step counter) even if annee_ref == anneeref and day_ref
== dayref. raz_date is no longer modified by gcm main unit. (Following
LMDZ.)

Removed argument klon of interfsur_lim. Renamed arguments lmt_alb,
lmt_rug to alb_new, z0_new (same name as corresponding actual
arguments in interfsurf_hq).

Removed argument klon of interfsurf_hq.

Removed arguments qs and d_qs of diagetpq. Were always
zero. Downgraded arguments d_qw, d_ql of diagetpq to local variables,
they were not used in physiq. Removed all computations for solid water
in diagetpq, was just zero.


Downgraded arguments fs_bound, fq_bound of diagphy to local variables,
they were not used in physiq. Encapsulated in a test on iprt all
computations in diagphy.

Removed parameter nbtr of module dimphy. Replaced it everywhere in the
program by nqmx - 2.

Removed parameter rnpb of procedure physiq. Kept the true case in
physiq and phytrac. Could not work with false case anyway.

Removed arguments klon, llm, airephy of qcheck. Removed argument ftsol
of initrrnpb, was not used.