Revision 122

In procedure fxhyp_loop_ik, when testing whether xvrai is between -pi
and pi, changed back the boundaries from -pi - 1d-5 to - pi_d - 0.1
and from pi + 1d-5 to pi_d + 0.1. Fixed the logic: for ik = 1, we
rearrange longitudes between -pi and pi, if necessary. For other
values of ik, we apply the same rearrangement.

In module serre, change the default values of dzoomx and dzoomy to
0.2, because dzoomx must be > 0 when grossismx > 1.

With this revision, we recover the results of revision 120 and we
remove the bug that appeared with clon = 20.