commitmonitor Code

Block the list control from updating while removing selected items.
This fixes issue #58.

adjust the slider position infos after restoring the dialog size.

Add the contents of the tree view *after* sizing the control when initializing the main dialog.
This should fix issue #55.

Add new context menu entry for the tree view to mark *all* entries as read, even the entries of all child nodes.
The existing entry is changed to behave that way, the new entry called "Mark node as read" now does what the original entry did before: mark only the selected node as read.

This implements issue #52.

* Handle both notifications for the list control (select and deselect)
* Indicate that the log message control only shows the info for the last selected entry if more than one entry is selected

This fixes issue #53.

Mask out the four lowest bits in the wParam of the WM_SYSCOMMAND message as stated in the docs.
This adds to issue #44.

Patch from lanwin.de (slightly modified by me):
Fix issue #44.

* Save the dialog position right before the dialog gets maximized.
* Do not save the dialog position on close if it is maximized.
This implements issue #44.

Restore the slider positions correctly with half the slider width as an offset.

Make using TortoiseSVN for showing the diffs optional.