2014-04-02
	* mktwflist.py : readh() : debug
	           it failed for the narrow band twilight flats 
	           it has been fixed by adopting pyfits.getheader

2014-04-01
	* mktwflist.py : bkcheck() : debug %%s -> %s

2014-03-11
	* twflatview.py : coped with the bug in matplotlib.pyplot.clf() for mac that replot is not available 
	
2014-03-05
	* sirphot.py : new
	* sirwcs.py : new

2014-02-25
	* twfcom.py : new to wrap twflatcom.c 
	* corrflat.py : new 

2014-02-17
	* imgrecom.recomb() : 'EXTEND' in the primary header of recombined FITS files to be 'T'

2014-02-14
	* irsf.py readobslog() : to ignore cases for the sky prefix and to remove _ before the sky prefix

2014-02-07
	* twflatview.py : the contour interval has been changed from 0.02 to 0.01 at L114-115
	* mktwflist.py : bkcheck() : the unstable messages are displayed only for the J-band
          	         printhelp() is created 
			 main : (1) checking of arguments is improved so that errorneous inputs are rejected 
				(2) the parameters are recorded in mktwflist.param
				(3) non-default parameters are displayed
2014-02-06
	* mktwflist.py, twflatview.py, and twflatcom.c have been added to this package
	twflatcom.c is a standalone application.

2014-01-22
	* mklog.py hdr.has_key('keyword') changed to 'keyword' in hdr

2013-05-01
	* sirrecom.tuneparam : When the number of stars detected by daofind is more than 500, 
	iraf.apphot.findpars.threshold is doubled and daofind is repeated until the number becomes smaller than 500.
	Too many stars in a field cause a failure in xyxymatch. 

	* irsf.mkdarklist checks data type of user-prepared dark FITS files. 
	If it is not 32 bit float, irsf.mkdarklist will convert it to 32 bit float.

	* irsf.checkflat checks data type of user-prepared flat FITS files. 
	If it is 64 bit float, irsf.checkflat will convert it to 32 bit float. 
	If it is other than 32 or 64 bit float, irsf.checkflat will show a message 'Illegal data type ... '.

	* Calculation of datanum in badfillw.c, recompolx3.c, spmkix.c and spmkqux.c is improved. 
	When (xsize * ysize) % 2880 == 0, an extra 2880 padding was added to the end of file. 

