commitmonitor Code

Update to Subversion r24942.

Fetch the diff from the repository if it isn't already cached on disk.

Use OleInitialize/OleUninitialize instead of CoInitialize/CoUninitialize

* Add wrapper class for IProgressDialog
* Add callback for the progress dialog.

Make sure the diff viewer can't be made smaller than useful.

Add minimize/maximize buttons to the main dialog.
A minimize will result in closing the dialog, the same as clicking on the OK button.

Play a sound when new commits arrived.
Use the 'mail arrived' default system sound, but also add an option in the settings dialog to specify an own soundfile to play.

Clear the error after showing it.

Show an error message box when selecting a tree item, if there was an error the last time that url was accessed.

Limit the log to 10 revisions also if the start or end revision is 1.