ipalib: move server-side plugins to ipaserver

Move the remaining plugin code from ipalib.plugins to ipaserver.plugins.

Remove the now unused ipalib.plugins package.

https://fedorahosted.org/freeipa/ticket/4739

Reviewed-By: David Kupka <dkupka@redhat.com>

ipaserver/plugins/session.py

@@ -0,0 +1,33 @@
+#
+# Copyright (C) 2015  FreeIPA Contributors see COPYING for license
+#
+
+from ipalib import api, Command
+from ipalib.request import context
+from ipalib.plugable import Registry
+
+if api.env.in_server:
+    from ipalib.session import session_mgr
+
+register = Registry()
+
+
+@register()
+class session_logout(Command):
+    '''
+    RPC command used to log the current user out of their session.
+    '''
+    NO_CLI = True
+
+    def execute(self, *args, **options):
+        session_data = getattr(context, 'session_data', None)
+        if session_data is None:
+            self.debug('session logout command: no session_data found')
+        else:
+            session_id = session_data.get('session_id')
+            self.debug('session logout command: session_id=%s', session_id)
+
+            # Notifiy registered listeners
+            session_mgr.auth_mgr.logout(session_data)
+
+        return dict(result=None)