update to v2.0.0-b4 version

change global.php config load time and logic
set context get server function available more time
delete unused comment and @CQAPISend
@CQCommand add start_with and end_with
set exceptions extended by ZMException
rename @SwooleSetup to @ZMSetup
fix quotes for global.php
fix LightCache empty presistence_path error
remove RemoteShell

src/ZM/Exception/WaitTimeoutException.php

@@ -7,7 +7,7 @@ namespace ZM\Exception;
 use Exception;
 use Throwable;
 
-class WaitTimeoutException extends Exception
+class WaitTimeoutException extends ZMException
 {
     public $module;