Multi-level Undo for TextMorph

• Squeak3.6 -
• Beta - Useable but still not stable, probably has bugs.
• Development tools - Add-on development tools for Squeak.
• SqueakL - The original license of Squeak from Apple. Obsolete since Squeak 4.0 (which only accepts MIT contributions). SqueakL is not recommended to be used for new projects.
• Squeak3.7 - Released 15 Sept 2004.
• Squeak - The official distribution of Squeak.

=== RELEASE INFO PLEASE READ ===
IMPORTANT: Do not try to use the 3.6 release in the 3.7 image, or vice-versa.

FOR 3.6, the latest version is release 1-3.6.1, also at:
http://www.swerlingphoto.com/squeak/multiundo/MultiUndo-v2-sps.1.cs.gz

FOR 3.7, the lastest version is release 1-3.7.1, also at:
http://www.swerlingphoto.com/squeak/multiundo/MultiUndo-v2-sps.1.cs.gz

=== DESCRIPTION ===
Adds a preference, #multipleUndo, that adds multilevel undo/redo capability to TextMorph. A method is added that remaps cmd-r to redo.

Most of the code is in TextMorphEditor or support classes, and I believe it could be ported to MVC without too much trouble, mostly by moving the methods in TextMorphEditor up to ParagraphEditor. But I don't know my way around MVC, so someone else would have to do that.

Releases

• 1-3.6.1 - Latest Release For 3.6. DO *NOT* USE THIS IN SQUEAK 3.7
• 2-3.7.1 - Release For 3.7