commitmonitor Code

After re-writing the data, make sure nothing is selected before refreshing the tree view.
(Fixes issue #365) : Crash when after modifying the ignore users

Only restore the selection if there actually was a selection.
Update issue #364.

Patch from Phil Hartmann:
fix issue with multiple monitors.

Store the selection and restore it after refreshing the tree view.
(Fixes issue #364) : After pressing Options->OK no project is selected

Disable the diff button when reinitializing the list control, and also if no entries are selected.
(Fixes issue #363) : "Show Diff" toolbar button bug

patch from XhmikosR:
bump the copyright year, remove unwanted spaces and convert some tabs to spaces.

Don't store window positions when the dialog is minimized: in that state the positions are invalid.
(Fixes issue #360) : Window size not remembered under certain circumstances

Sort the content by column if there's a click on the column header.
(Closes issue #74) : Sortable columns

When diffing with TSVN and there's only one path changed in a revision, use that path directly.
(Closes issue #357) : Direct diff, if only one file changed

Take the height of the filter checkbox into account when resizing the message control.
(Fixes issue #355) : Log message box too tall, last line gets Aero glass'd