list of updates/changes

15-12-2000 Addition of Fe IX - Fe XV 2s-3p absorption lines as calculated
           by Ton Raasen to the model slablin
15-12-2000 Addition of two O VI KLL resonances as calculated by Pradhan 2000
           to the model slablin
15-12-2000 Addition of the feature "par write ..." to the command files
17-01-2001 Added the "fit iter #" feature
01-02-2001 Improved the absorption line list for model slab; included 
           some Si & S L-lines from Liedahl's HULLAC calculations
06-02-2001 Repair bug in slab model (for line width zero)
19-03-2001 Cosmetics in "par show"
20-03-2001 Improved the pdem model
29-03-2001 Included the xabs model
09-04-2001 Removed small bug in par couple factor command
12-04-2001 Forces write out all commands in "log save" mode in case of
           core dump
12-04-2001 Bug removed in model xabs (caused crash after given # evaluations)
28-05-2001 Bug removed from copy_sector and read_resp
08-06-2001 Bug removed in plotting of area settings
08-06-2001 Included option of shifting curves in plots (plotshift)
01-07-2001 Included UTA data of Behar et al.
03-07-2001 Atomic data now read in fits format
13-07-2001 Improved dem regularisation methods
23-07-2001 Included Fe I to Fe VI as parameters for slab model
24-07-2001 Modified wavelength of O VII resonance line
04-09-2001 Now also abundances set of Grevesse & Sauval
20-09-2001 Improved spectral simulations part
05-11-2001 Removed error in model gaus (average energy within bin was wrong)
16-11-2001 Included Zycki's reflection model
15-01-2002 Include option for other reference atom in abundances
15-01-2002 Limited fitting of instrument renormalisation possible
13-02-2002 Restored bug in delta-model for E at bin boundary
14-02-2002 Restored bug in trafo (error sometimes if zero response included)
15-03-2002 Error in slab lines for Si X and Si XII corrected
25-03-2002 Improved fitting speed by storing component spectra
17-04-2002 Removed bug in dem methods for rebinned spectra
26-06-2002 Changed caption text for model spectra in Watt-related units
27-06-2002 Removed bug from DEM fitting (did not apply absorption)
11-09-2002 Removed small bug in CIE model for sigma_T.ne.0
11-09-2002 Removed small numerical bug in recomb (crashed for T>550 keV)
29-10-2002 Introduced data merge mode
30-10-2002 Repaired bug in pl_chi (no background available for that mode)
18-02-2003 Hot model now also contains absorption lines
18-02-2003 Changed slab, xabs and hot models to truly spex models
26-02-2003 Repaired bug in reading data when files do not exist
04-03-2003 Added the warm model
05-03-2003 Added the menu syntax option
05-03-2003 Slight improvement of the Na columns in the xabs/warm models
05-03-2003 The absorption models now fully support the ions use/ignore settings
07-03-2003 Improvements in accuray comtinuum models for narrow model bins
Version 2.00.01
16-05-2003 Repaired bug in reading large number of data and merging data
16-05-2003 Correction in the "menu" commands
Version 2.00.02
21-05-2003 Added Ni I to Ni XVIII L-shell innershell transitions (T. Raassen)
21-05-2003 Bug repair in trafo (thanks to M. Audard for pointing this out)
Version 2.00.03
22-05-2003 Added option of luminosity scaling for power law component
26-05-2003 Corrections of Doron & Behar for strongest 7 Fe XVII lines
17-06-2003 Added velocity broadening, outflow etc. to "hot" absorber model
Version 2.00.04
18-06-2003 Improved numerical accuracy of the convolution models
18-06-2003 Added var newmekal menu for (de)selecting updates of mekal
23-06-2003 Added Fe-K absorption lines from Fe X - Fe XXIV from Mendoza, Palmeri et al.
Version 2.00.05
03-07-2003 Removed bug from step commands (should work now)
03-07-2003 Other initialisation in next_par; now allows to omit sector & comp numbers for first call
04-07-2003 Adjusted wavelength of O V absorption line to 22.38 Ang
07-07-2003 Small improvement in plotting fluxed spectra
11-07-2003 Small improvements in plotting routines
11-07-2003 Improvement in par write command (writes first par range then value)
11-07-2003 Writes warning for step search on instrument normalisations
Version 2.00.06
01-10-2003 O V absorption line now to measured lab wavelength 22.374 Ang
31-10-2003 Allows different abundance sets for xabs and warm models
01-12-2003 Changed vprof models: now reads arbitrary file as input
07-01-2004 Removed bug in par write command for ascii-type parameters
07-01-2004 Refl model now also works under linux
Version 2.00.07
19-03-2004 Increased max #words on input lines from 15 to 20
19-03-2004 Included option for delta-line and gauss line to fit wavelength
13-04-2004 Save spectrum to a .spo file now writes all extensions
Version 2.00.08
19-04-2004 Included dbb model (blackbody emission from a disk)
22-04-2004 Added Ni XXVIII and Ni XXVII lines in absorption models (up to n=5)
22-04-2004 Included the "file" additive model
26-04-2004 Removed bug in program trafo for multiple spectra
Version 2.00.09
27-07-2004 Improved wavelengths Ni-K for Ni XXVII and Ni XXVIII
07-08-2004 Removed bug in warm model (was introduced in version 2.00.08)
31-08-2004 Introduced the obin binning option - recommended, see manual
01-09-2004 New default cosmology for distances (allows for Lambda etc.)
03-11-2004 Thomson scattering in absorption models (Klein-Nishina cross-section)
03-11-2004 Introduced the etau model for simple transmission profiles
Version 2.00.10
19-11-2004 Error search with one free parameter only gives now less output
19-11-2004 Bug removed that sometimes caused cie model to crash for sigma_T>0
23-11-2004 Introduced C-statistic in fitting (see manual on fit syntax)
30-11-2004 Removed small bug fromp obin binning option
01-12-2004 Introduced the RRC model (see manual for details)
06-01-2005 Removed bug in redshift model (fluxes were (1+z)**2 too small)
06-01-2005 New parameter "flag" in redshift: distinguish cosmology and outflow
21-01-2005 Added the system command (see manual for details)
27-01-2005 Removed bug in subr. model for transmission calculation