Standalone version 2.5.0sa

Applications dependent on Blockchain are updated only when new blocks have appeared. The degree of centrality is now calculated by a modification of Ulrik Brandes' algorithm. All printings are made in regular windows, and no more in log window. New display of mamberships limits. In IdentitySearch, the centrality level is calculated for old members too. Plots by Hermes have been added for MembersPrint, CentralitiesPrint and QualitiesPrint. WotWizard Fichier may be displayed (including Dossiers with no certification), as well as Permutations. In WotWizard, sorting order of Files is more precise. In WWViews, better Equal procedure, with less precision in proba.