There have been long standing problems with the buttons not working in
Firefox, and now a [further
problem](https://groups.google.com/d/msg/tiddlywiki/GlsruQyPOag/BAhnI2mt
BgAJ) has come to light, and been similarly hard to resolve.
On balance, I’ve decided to remove the undo/redo buttons from the
toolbar (the ctrl/cmd-Z shortcut is still operational), thus avoiding
the problems, and saving some space in the core.
* Copy example from ActionSendMessageWidget to tm-new-tiddler
It is counter-intuitive that the ActionSendMessageWidget documentation has more information on tm-new-tiddler than the more specific one.
* Fix link in reference docs
* Fix some typos
Previously we were using a message `tw-auto-save-wiki` to trigger an
autosave. The message was generated by certain UI actions such as
saving a tiddler. The trouble was that the message was being processed
before the wiki change event for the accompanying change had had a
chance to percolate. The end result was that the dirty indicator was
staying lit when using autosave.
The new approach abandons the autosave message and instead triggers the
autosave in the wiki change event when a relevant change occurs.
One happy side effect of these changes is that the dirty indicator now
works as expected with the client server edition - ie, when typing in a
draft tiddler the dirty indicator will flash briefly, and then clear
when the sync mechanism has completed saving the draft.
