[1.4.3]: fixes small memory leak for the Cp-models using the standard tables

[1.4.2]: fixes memory problems if a 6-dim table was used

[1.4.1]: corrects the (loose) definition of the reflection fraction in
the relxill (non-LP) type models, which now directly follows the
xillver/pexrav definition of the flux. This implies that the
normalization (i.e., the flux) now depends on the inclination as
F=1/2*cos(incl).
