Revision history for Perl extension Tk::JThumbnail.

2.00  Thu Mar 21 19:48:37 2019
	- original version; created by h2xs 1.23 with options
		-X -n Tk::JThumbnail
	  Started with v2.0 since we're both a fork and a continuation of 
	  Tk::Thumbnail.

2.01  Sun Mar 24, 2019
	- Fix segfault if clear() called followed by configure(-images => \@files).
	- Touch up the docs a bit.
	- Include proper license files.
2.1   Thu Mar 19, 2020
	- (Hopefully) FIX all remaining SegFaults on bad/non image files.
	- Fix some selection-issues.
	- Add default bindings for <space> and <Shift-space> to make work
	  like <Button-1> and <Shift-Button-1>.
	- Add selectionIncludes() and selectionAnchor() functions to match
	  those found in Tk::*MListbox widgets.
2.2   Mon Mar 23 2020
	- Add Balloon option (-iballoons => 1|0) to specify show popup balloons
	  showing the file-name when mousing over an image.
	- Add -iborder, -ihighlightthickness, -irelief, -iactiverelief, and
	  -ianchor options to specify the border, relief, etc. values for the 
	  icon buttons.
	- Add -iwrap option (-iwrap => -1,0,1,2,3,4,64..., default -1) to cause
	  the text labels to be wrapped (requires -ilabels => 1(true)).
	  -1 (default) - no wrapping, 0 - calculate sensible default, 1-4: wrap
	  width is 1x..4x the icon width, 64+:set the wrap width to that many
	  pixels.  5-63: set wrap to 64 pixels.
	- Add -font option to specify the font to use.  Default is the
	  proportional sans font selected by Perl/Tk.
	- Add "-state" option, can be either "normal" or "disabled":
	  (In other words add ability to disable the entire widget).
	- Add a '-1' option value to the -columns parameter to have
	  JThumbnail calculate the number of columns based on the window-size
	  and the widths of the icon buttons (including wrapped file-name
	  text labels, if -ilabels => 1(true) specified such that the window is
	  filled horizontally without the need for horizontal scrolling.
	  (NOTE:  -iwidth => (>0), and either -iwrap => (>=0) or -ilabels => 0
	  must also be specified for this to work!
	- Properly initialize anchor and selecting/deselecting mode for more 
	  consistant multi-selecting/deselecting.
	- Enable drag-selecting to scroll the visible window!
	- Make the "default" (-command => undef) mouse-button down function
	  work more user-friendly when selecting/deselecting.
	- Misc. code cleanups.
2.3   Thu Jan 06 2022
	- Fix index() function not accepting integer values, namely zero (0) 
	  (like *Listbox modules) as raw zero-based indices into the list.
	- Also added decimal numbers to allow for specifying specific zero-based 
	  row.column indices, which will return the equivalent raw index# for a 
	  specific item.  Bounds checking is done in both cases.
2.4   Fri Jan 21 2022
	- Add new -state option to configure as "normal" or "disabled", like many
	  other Tk widgets.  "disabled" prevents user-interaction with the widget, 
	  but NOTE that does not prevent applications from updateing it.
	- Remove the special "-focus" option and get the traditional "-takefocus" 
	  option working properly.  There are 3 valid state values:  "", 0, and 1.
	  "" is the default and allows focus via tabbing, but the widget does not 
	  take focus when clicked on.  "1" allows both, "0" does not allow the 
	  widget to gain the keyboard focus.  This is consistant with other Tk 
	  widgets.
	  NOTE:  The old "-focus" option is DEPRECIATED & has been REMOVED
	  (change your code)!
	- Add new color options:  -selectforeground, -activeforeground, and
	  -disabledforeground.
	- Various minor bug-fixes and tweaks.
