2004-10-05  Andreas Kupries  <andreas_kupries@users.sourceforge.net>

	*
	* Released and tagged Tcllib 1.7 ========================
	* 

2004-09-22  Aaron Faupell <afaupell@users.sourceforge.net>

	* png.test: updated timestamp test to use gmt

2004-08-25  Aaron Faupell <afaupell@users.sourceforge.net>

	* png.tcl bug fix in getTimestamp, made times be interpreted as gmt.

2004-08-09  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* png.man: Spelling police.
	* png.test:

2004-05-22  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* png.tcl: Fixed a problem with the reading of crc data from png
	  files. The 'binary scan' may return a negative integer, but the
	  check is against unsigned data. Added code to check for this and
	  compute the proper unsigned number for correct comparison.

	* png.test: New file. A testsuite for the module. Incomplete.
	  Tests the validation, signature, retrieval of image information,
	  and of timestamps. The image files used are from the official
	  PNG testsuite.

2004-05-20  Aaron Faupell <afaupell@users.sourceforge.net>

	* png.tcl: moved file opening and signature validation to
		a seperate proc. added isPNG command.
	* png.man: updated to include isPNG command

2004-05-07  Andreas Kupries <andreas_kupries@users.sourceforge.net>

	* New module for querying PNG images, and manipulating their
	  comments, and timestamp.
