commitmonitor Code

Fixes issue #123
* add boolean state to the CUrlInfo class
* add context menu for the tree control to enable/disable monitoring
* show a gray icon if the project is not currently active (i.e., monitored)
* skip checking the project if it's not monitored

Update issue #75:
* add label and edit box for filtering
* handle resizing/repositioning of the two new controls

Fixed issue #130: Change request: don't animate on connect errors

Add option to disable notifications on connection errors.

Use a different tree icon if checking for updates failed.

Implemented issue #120: Make the number of log messages fetched configurable

Implemented issue #117: (Enhancement) Allow to reload revision details
* add context menu to the tree control to 'mark' the repo for a complete refresh on the next check
* when refreshing a repository, keep the 'read' state of the refreshed entries

Implemented issue #106: "Ignore users" isn't considered when executing "Script/Command"

Implemented issue #94: Enhancement: URL for browsing differences with revisions numbers

* add edit box for the web viewer url to the url dialog
* replace the strings in the url:
%revision - replaced with the new selected revision number
%url - replaced with the url of the project
%project - replaced with the project name
* open the browser with the web viewer url when requested by the context menu

Implemented issue #7: Custom action after commit detection

* add edit box for the command line string to execute to the url dialog
* replace the strings in the command line:
%revision - replaced with the new HEAD revision number
%url - replaced with the url of the project
%project - replaced with the project name
* execute the command line string when new commits are detected

Implemented issue #92: Enhancement: Ignore list of users