commitmonitor Code

Remove the option to automatically fetch the diff.

Check the svnrobots file only once, not for every received log message.

Add an update notification if a newer version of the CommitMonitor is available.

Make the comparison of the author names to determine own commits case-insensitive.
This implements issue #71.

Handle the WM_QUERYENDSESSION message.

Postpone the first check after the CommitMonitor is first started by one minute.
This implements issue #63.

Stop monitoring when computer wants to go to low power/suspended state and resume monitoring when it activates again.

* Stop the thread before destroying the window
* Use the save() method instead of save(filename)

Add entry "Check now" and "Options" to the system tray icon context menu.

This implements issue #51.

Reset system tray icon when the main dialog is closed.
This fixes issue #45.