Changed CONCENTRATION_MODEL to SPREAD_MODEL.
Added SPREADERR_MODEL measurement (currently a crude estimate).
Optimized FFT calls.
Set PSF_NMAX to 2 by default.

Added FLUX_MAX_MODEL, FLUX_EFF_MODEL, FLUX_MEAN_MODEL, MU_MAX_MODEL, MU_EFF_MODEL and MU_MEAN_MODEL parameters (FLUX_MAX_MODEL estimator still somewhat inacurrate).
Added FLUX_MAX_SPHEROID, FLUX_EFF_SPHEROID, FLUX_MEAN_SPHEROID, MU_MAX_SPHEROID, MU_EFF_SPHEROID, MU_MEAN_SPHEROID parameters.
Added FLUX_MAX_DISK, FLUX_EFF_DISK, FLUX_MEAN_DISK, MU_MAX_DISK, MU_EFF_DISK and MU_MEAN_DISK parameters.
Changed the way total model fluxes and model moments are computed.
Pushed version number to 2.9.2.

Changed configure behaviour towards CFLAGS and LDFLAGS: automatic settings are now applied only if the --enable-automatic-flags configure option is set (thanks to S.Pascual).
Version number pushed to 2.9.0.

Fixed random crashes with model fitting (thanks to S.Desai).
Fixed gain problem in PSF fitting.
Pushed version number to 2.8.9.

Re-organized astrometric calls.

Made handling of dynamic compression and chi2 computations more flexible.

Version number pushed to 2.8.4.