commitmonitor Code

Refactor the COMMITMONITOR_CHANGEDINFO message into two separate messages, one to save the changes and one to change the tray icon.

Don't add new URLs in the thread if in the main dialog an URL was removed.
Without this, there's a race condition if the main dialog removed the URL while the thread is still running, then the thread could re-add the same URL again and 'overwrite' the users choice to remove the URL.

Set the window title of the diff viewer according to the diffed project and revision.

Show diff on doubleclick.

Show folder icons in the url treeview.

* subclass the tree view control to catch the WM_SETFOCUS message and set the state of the remove button
* use member variables for the HWNDs of the dialog controls

The remove button deletes either the selected tree or listview item, depending on which control has the focus.

Enable/Disable the toolbar buttons according to the selection state.

Implement dialog resizing.

* use the correct icon for "show diff"
* Only change the tray icon if really something has changed, not every time the data needs to be saved.