commitmonitor Code

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 #110: Displaying connection error notification in systray

* show notification if an error occurs while checking a repository for changes
* show repositories with errors in gray text in the tree control

Fixed issue #108: Tray icon does not activate on commit detection

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

Fixed issue #101: All projects commands are been executed at once.

* Only execute the scripts if there were new commits to the monitored part of the repository

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

Make sure the tray icon gets properly restored if required.

Remove the option to automatically fetch the diff.