commitmonitor Code

(Fixes issue #247) : Authentification bug
* Clear the error when the edit dialog is closed.

(Closes issue #231) : Go to Repository Browser or Log window from Commit Monitor

(Closes issue #240) : GENERATE REPORT
* add menu to copy the selected entries to the clipboard

(Fixes issue #239) : "Add project from this" overwrites source

Use the hidden registry parameter "Software\\CommitMonitor\\DiffParameters" to pass additional Parameters to the diff command, e.g. "-w" to ignore whitespace

(Closes issue #170) : Enhancement: Provide a command to create new project by copying it from an existing project

(Closes issue #234) : Remember last selected project

Mention how to use regex filter strings in the tooltip.

(Closes issue #205) : Enhancement: Refresh single node

* introduce variable for single url. In the refresh thread, only work on that url if it is set.
* add menu for "check now" to the tree view items which only check that selected item.
* rename "refresh all on next check" to "refresh all".

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