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

config/global.php

@@ -36,10 +36,10 @@ $config['swoole'] = [
 
 /** 轻量字符串缓存，默认开启 */
 $config['light_cache'] = [
-    "size" => 1024,                     //最多允许储存的条数（需要2的倍数）
-    "max_strlen" => 16384,               //单行字符串最大长度（需要2的倍数）
-    "hash_conflict_proportion" => 0.6,   //Hash冲突率（越大越好，但是需要的内存更多）
-    "persistence_path" => $config['zm_data']."_cache.json",
+    'size' => 1024,                     //最多允许储存的条数（需要2的倍数）
+    'max_strlen' => 16384,               //单行字符串最大长度（需要2的倍数）
+    'hash_conflict_proportion' => 0.6,   //Hash冲突率（越大越好，但是需要的内存更多）
+    'persistence_path' => $config['zm_data'].'_cache.json',
     'auto_save_interval' => 900
 ];