commitmonitor Code

(Closes issue #266) : Enhancement: when clicking notification, automatically select project in tree

(Closes issue #275) : Ability to monitor commits of certain users

* add a new section in the URLs dialog which takes a list of users to include

(Closes issue #262) : "Open WebViewer" as default action
* add new option
* start webviewer on double click if option is set

(Closes issue #257) : Enhancement: Keyboard Shortcuts

convert tabs to spaces.

(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

(Closes issue #237) : Diff options

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

(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".