version 0.20:
	* LightSynthesize.c: fix problem with throat of overcontact binaries
	  (check for negative tmin)
	* LightSynthesize.c: make fractional visibility work again
	  (set flags Flags.InEclipse1/2, was commented out)
	* work around Gnuplot crash when no residuals available
	* fix a2ps -H() problem by using -H"..."
	* fix: use a2ps option -8 for German umlaut printing

version 0.19:
	* LightSpot: Fix for a bug in spot placement (placement was incorrect
	  when latitude was zero)
	* LightConfig: Comment out a testing print statement that somehow
	  crept into 0.18
	* Add '#N' option for lightcurve data to change normalization phase

version 0.18:
	* Fixes for arithmetic exceptions on Linux/Alpha.

version 0.17:
	* LightFlux: Hauschildt et al. models included
	* LightFlux: hash table replaced with binary search
	* clamp all arguments of asin(), acos() (roundoff errors)
	* Light.c: fixed compile error with --disable-nls
	* LightMsg.h: compiler warnings from fixed
	* update to GNU gettext library from gettext-0.10.35
	* fixed - compilation without gtk
	
version 0.16:
	* fixed - display of spot parameters after interactive .cfg loading
	* don't use gnuplot's y2ticks - range not properly set
	* fixed - incorrect volume in solar units
	* fixed - broken pipe crash with gnuplot in Roche potential display
	  (-Inf in array ...)
	* fixed - missing labels with gnuplot after using animated mode
	* configure should hopefully find Debian PGPLOT package now
	  (tests /usr/lib, /usr/local/lib, /usr/local/include)
	* LightGtk, LightGtkSelect: bug fix (closing on NULL file pointer ...)
	* LightSynthesize: bug fix (domain error in asin() ...)
	* Makefile.in: added $(GNOME_LIBDIR) to $(LIBS_TRY)

version 0.15:
	* upgraded to autoconf 2.13.1 with Fortran support
	* for PGPLOT, test whether compile (C) and link (F77) works 
	* new section 'Technical details' in user manual
	* environment variable NIGHTFALL_RADIATIVE for limiting T(convective)
	* incorrect use of osculating cone angle in eclipse testing corrected
	* LightInput.c: bug fix in reset of mass ratio to lower limit

version 0.14:
	* documentation updated
	* added fallback on C in GtkHelp if unsupported language set
	* separate compile-time defaults for data/, cfg/, doc/
	* support for relocation of data (environment variables)
	* Makefile.in cleanup, fixed the 'dist*' targets 
	* improved session management (for restart)
	* fixed session management for Gnome API changes (%&/%$%$ !!!)
	* minor bugfix - update of name after loading config

version 0.13:
	* fixed a 'broken pipe' error in the Roch slicer (hopefully)
	* added display of currently loaded data
	* minor bug fixes
	
version 0.12:
	* fixed the uninstall procedure
	* fixed potential problems with the install procedure 
	* added support for german localization
	* added support for internationalization
	* fixed a segfault with the online help
	* added data+model for 51 Peg
	* fixed range for radvel plot if only data for one component
	* fixed rotation centre for animation (is centre of mass now)
	* fix for compiling on Dec OSF/1 (thanks to Hans)

version 0.11:
	* added 'compilation problems' section to the README
	* added configure switch to enforce gnuplot support
	* search ./cfg (./data) and DATAFLS/cfg (DATAFLS/data) for files
	* Gnome helpfile installdir corrected
	* Nightfall logo added
	* use checkboxes for options (other than fit/const)
	* add some documentation for chi map 
	* Gui support for chi map
	* chi map debugged
	* mass_ratio and inclination toogle fit segfault fixed
	* on-line info segfault fixed
	* labels on curve plot (gnuplot)

version 0.10:
	* better cleanup on exit (use process group ID)
	* gray out unavailable menu items
	* set linker to $CC if gnuplot
	* gnome support
	* file selection bug fixed

version 0.9:
	* bugfix uninstall procedure
	* minor visual improvements
	* postscript output for data sheet
	* third light: l1 + l2 + l3 = 1.0
	* check for TEMPDIR/TMPDIR

version 0.8:
	* $(HOME)/.nightfallrc is parsed by gtk
	* Icons modified
	* Signal handler for FIFO cleanup
	* Primary Roche fill minimum bugfixed

version 0.7:
	* LightConfig bugfix (flags for eccentric orbit, async rotation)
	* documentation updated
	* async rotation bugfix (flag not properly used)
	* toggle_fractional bugfix
	* minfinder bugfix
	* surface: root search limits updated
	* toggle wavelength/velocity in Profiler
	* new annealing algorithm
	* new random number generator 
	* memorizes data files
	* memorizes file directories
        * drop capital N in binary name
	* configure.in bugfix
	* fallback on PWD/subdir/ for files
	* gnuplot hardcopy bug fixed (sort of)
        * helpfiles updated
	* pgplot window resizing
        * GUI layout changed again
	* gnuplot window handling improved
        * stellar system name supported
        * some bugfixes
        * general code cleanup, speed increase


version 0.6:
        * nicer gnuplot plots
        * LightGtkProfiler.c
                       - visualization of line profiles
        * LightGtkVisualize.c bugfix for eccentric orbit
        * bugfix radial velocities              
        * LightElliptic.c:
                       - in UpdateGeometry() set RootFind tolerance to EPS
        * added data for v541 cyg (eccentric orbit)
        * update of documentation
        * added LightGtkShowdata.c to show data for binary
        * LightGtk.c   - minor modification of GUI layout
        * LightGtkSlicer.c, LightGtkVisualize.c
                       - debugged Gnuplot version
        * added LightGtkSlicer.c - the Roche potential slicer
        * LightGtkHelp.c
                       - online help system
        * LightInput.c - bugfix (cl parsing)
        * LightGtkVisualize.c
                       - viewing angle setting for star visualization
        * LightOutput.c, LightGnuplot.c
                       - improved gnuplot support (radial velocities)



version 0.5:
        * bugfix (segfault... calling gtk before init)
        * bugfix (autoconf related)


version 0.4:
        * LightConfig.c
                       - minor bug fix (overwriting spot parameters)
        * Light.c, Light.h, LightAnimate.c, LightOutput.c, LightVisualize.c
                       - check for memory allocation included for large
                         arrays
        * LightGtkEnter.c
                       - bugfix (sigsegv with empty input field)
        * several small bugfixes (plotting, fit output, spot fitting)
        * switch to autoconf configuration (well, not really;
            much of configure.in is handmade ...)
        * LightGtk.c   - GUI blocked during computation to prevent chaos ;-)
        * LightGtk.c   - dialog box for error messages
        * LightGtk.c   - complete change of GUI layout
        * LightGtk.c, LightGtkToggle.c, LightGtkEnter.c
                       - Third Light supported
                       - mass, period, seperation supported
                       - better support of command line options
                       - progress bar
        * LightGtk.c,LightConfig.c 
                       - write option for config file
        * LightGtk.c,LightConfig.c
                       - interactive read-in of config file
                       - global entry fields (for run-time update)
        * LightGnuplot.c
                       - replaced 'unlink' by 'remove'
        * LightGtk.c   - callback functions removed 
        * LightGtk.h   - header file created
        * LightGtkToggle.c, LightGtkEnter.c
                       - callback functions


version 0.3:
        * LightGnuplot.c, LightPGemulate.h
                       - (partial) support for GNUPLOT, animation and 
                         lightcurve plots work
        * data         - missing system velocity for TY Boo fixed
                         (and reference corrected)


version 0.2:
        * LightGtk.c   - GUI now supports surface spots
        * Light.c      - Surface.SumDimFactor, Surface.Spotnum
                         initialized in MainLoop() 
        * LightGtk.c   - added simulated annealing option
        * LightGtk.c   - Radio buttons for plot mode corrected
        * LightGtk.c   - wrong display of periastron length corrected
        * LightGtk.c   - plotting of lightcurve before computation inhibited
        * LightGtk.c   - Overcontact flag set correctly for input in GUI
        * LightInput.c - Usage updated


version 0.1:
	* first release






