core: replaced sat shell script by a python script:

the backend is now launched by `sat.core.launcher`, and the script is generated during
installation with a new entry point in `setup.py`.

sat/memory/memory.py

@@ -235,8 +235,6 @@ class Memory(object):
         self.subscriptions = {}
         self.auth_sessions = PasswordSessions()  # remember the authenticated profiles
         self.disco = Discovery(host)
-        # XXX: tmp update code, will be removed in the future
-        tools_config.fixLocalDir(False)
         self.config = tools_config.parseMainConf(log_filenames=True)
         database_file = os.path.expanduser(
             os.path.join(self.getConfig("", "local_dir"), C.SAVEFILE_DATABASE)