[PluginMgr]Add Italian translation[gramps51](#189)

Author: sam-m888

PluginManager/PluginManager.gpr.py

@@ -29,7 +29,7 @@
 name  = _("Plugin Manager Enhanced"),
 description =  _("An Addon/Plugin Manager with several additional "
                  "capabilities"),
-version = '1.0.19',
+version = '1.0.20',
 gramps_target_version = '5.1',
 fname = "PluginManagerLoad.py",
 authors = ["Paul Culley"],