Merge pull request #5 from gaobinzhan/2.x

up: redis pool restriction

Author: Player626

composer.json

@@ -17,7 +17,7 @@
     "require": {
         "ext-swoole": ">=4.4.0",
         "easyswoole/component": "^2.0",
-        "easyswoole/redis-pool": "^2.0.7"
+        "easyswoole/redis-pool": "~2.1.0"
     },
     "require-dev": {
         "easyswoole/swoole-ide-helper": "^1.0"