* fixed: ConstConfigVar cannot use inherited member tha begin with __. So instead the getter function is called.
* changed behaviour of create_links and up2s3 to be responsible for the whole links folder and to figure out want needs to be copied and what needs to be uploaded. .stamp files are used to mark successful links creation and uploading. --revision command line option is not available any more.
* create_variables_assignment now always writes all internal variables, even in debug mode.
* platformSpecificHelper rmdir method accepts new parameter recursive. recursive==True enabled deletion of non-empty directories.
* SVNTopItem new method min_max_rev, returns the minimal and maximal last_rev of it's sub-items.