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Add an error message to configure-wxwidgets.sh when no parameter is given. This will help others who need to run the configure script.

Implement Search -> Replace in the Simplified Chinese editor

Add missing #include directives which prevented the code from compiling when precompiled headers are not used.

Fix a typo in the banner comment

Fix a bug in Simplified Chinese editor's "Find" functionality where, if the match included a chinese character (that is, a double-byte character), the match selection extended beyond the actual match.

Implement Search -> Find for the Simplified Chinese editor. To make this practically useful, this revision also makes the selection visible even when the editor does not have focus (otherwise you cannot see what was found).

Add a line break to a comment so that it didn't extend beyond 80 characters

Fix a bug in the Simplified Chinese editor where deleting all text with the "Clear All" was not undoable.

Remove an unused ID in the workspace editor.

Fix a problem with the Chinese editor where, immediately after opening, the user could "undo" the editor's contents back to an empty workspace.