commitmonitor Code

convert tabs to spaces.

(Closes issue #220) : improve dialog-UI on Vista+

Don't clear an error by simply selecting the tree node. Only clear the error with a doubleclick.

Allow compiling with the Vista SDK.

Make sure that even with IPv6 enabled the CommitMonitor can run on systems earlier than XP.

Update the libraries and enable IPv6 support.

Show the main dialog if the user clicks on the notification popup window.

Add a button to fetch the latest commits on request.

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.

Improve the search bar a little bit.