[PARSER] correctly set b3.parser.exitcode variable in order to return a valid exit code to the shell
This fixes auto-restart mode not working
[INIT] correctly match number of subprocess in b3_is_running when auto-restart mode is being used
[CORE] let the parser know when B3 is being run in autorestart mode
[UPDATER] use B3 autorestart mode to reboot B3 after a successfull B3 update install
[ADMIN] unregister !restart command if B3 is not running in auto-restart mode
[TESTS] remove !restart command from cmd !help expected output (tests are not running in autorestart mode)