CHANGES -- This file tracks modifications to autoslit 3.0.
==========================================================

-------------------
3.20	Mar-30-2011
-------------------
* Deprecated MIRROR keyword in input file.
* Removed central bar - both plotting and slit overlap checks.
* Added plotting of both blue and red chip gaps.
* Added slit overlap checks for both chip gaps - issue warning only.
* Changed default epoch from current date to epoch specified
  for field center in object file. EPOCH keyword can still be used
  to over-ride.
* Added output of a fourth file, which is a ds9 region file. It can
  be loaded into the ds9 image viewer to draw the slits on top of
  a WCS-enabled image of the field. [This idea was contributed by
  Andrew Newman, and the output style matches closely his own
  program for translating autoslit output to a region file.]
* Updated help file.
* Updated Makefile and verified that support architectures are:
	Mac OS 10.6 Snow Leopard
	RedHat Enterprise Linux w/ gcc 3.x and 4.x
	Oracle/Sun Solaris 10 with Sun cc
* Updated version number in autoslit.inc.


-------------------
3.10    Mar-18-2010
-------------------
* Updated version number in autoslit.inc (forgot for 3.09!).
* Updated Makefile to use gcc 4.x + gfortran as default compiler.
* Removed support for Mac OS X 10.3 and Sun OS 4.x from Makefile.
* Updated #ifdef in C source to support change in C+Fortran mixing
    with gcc 4.x.


-------------------
3.09    Jan-24-2007
-------------------
* Added support for rescaling from use of the atmospheric
  dispersion corrector (keyword: ADC).
* Changed architecture-specific compiler keyword "__APPLE__", to account
  for new behavior with Mac OS X 10.4 (Tiger) and gcc 4.x.


-------------------
3.08    Apr-21-2005
-------------------
* Minor modifications to compile on Mac OS X 10.3.


-------------------
3.07    Aug-19-2002
-------------------
* More minor modifications to compile on Linux.


-------------------
3.06    Jan-17-2001
-------------------
* Modified Makefile slightly to compile checkmask3 properly.
* Modified output routines in obscure case of dec = -0.xxxx.
* Minor modifications to compile on Linux.


-------------------
3.05    Apr-16-1998
-------------------
* Fixed GET_HOST to not crash if DNS does not return host name.
* Updated SLIT_SEP example in documentation from mm to arc-sec.
* Fixed header temperature label from [K] to [C].
* Corrected a number of typos in autoslit3.doc.
* Corrected a typo in autoslit.inc.
* Fixed documentation error regarding units of HOUR_ANG.


-------------------
3.04    Jan-14-1998
-------------------
* Fixed minor bug associated with boxes and arcs near the central bar.


-------------------
3.03    Oct-20-1997
-------------------
* Added updated documentation file, autoslit3.doc.
* Re-organized file and subdirectory structure.
* Added check_mask3 and tilted_slit programs.
* Added option to specify input file on command line.
* Renamed default input parameter file to 'autoslit.in'.
* Added default input object file name as 'autoslit.obj'.
* Both 'H' and '?' can be used for interactive mode help.


-------------------
3.02    Oct-16-1997
-------------------
* Increased precision of COSD/SIND calculation in WRITE_SETUP().
* Fixed major bug regarding lengthening of bottom-most slit.
* Added "add box slit" (B) command to support adding box slits interactively.
* Fixed bug in header output of southern hemisphere field.
* Adjusted ASSIGN_SLITS() to remove compile-time warning.
* Changed precession to work on object equinoxes, rather than epochs.


-------------------
3.01    Sep-08-1997
-------------------
* Fixed typo bug in SLIT_OK() call in ADD_SLIT().
* Blank lines in output setup file surrounded by delimiters, for
    alignment program.
* Tilted slits (as well as standard slits) are now lengthened.
* Added options in Makefile to compile with OpenWindows libraries.


-------------------
3.00	Sep-05-1997
-------------------
* official version 3.0 released