fix some bugs, bump ver(2.15.0), update install

packages/hydrooj/package.json

@@ -1,6 +1,6 @@
 {
     "name": "hydrooj",
-    "version": "2.14.9",
+    "version": "2.15.0",
     "bin": "bin/hydrooj.js",
     "main": "dist/loader.js",
     "typings": "dist/loader.d.ts",
@@ -19,11 +19,12 @@
         "js-yaml": "^3.14.1",
         "koa": "^2.13.0",
         "koa-body": "^4.2.0",
+        "koa-proxies": "^0.11.0",
         "koa-router": "^10.0.0",
         "koa-static-cache": "^5.1.3",
         "lodash": "^4.17.20",
         "lru-cache": "^6.0.0",
-        "minio": "^7.0.17",
+        "minio": "7.0.17",
         "moment-timezone": "^0.5.32",
         "mongodb": "^3.6.3",
         "nodemailer": "^6.4.17",
@@ -31,8 +32,7 @@
         "serialize-javascript": "^5.0.1",
         "sockjs": "^0.3.20",
         "superagent": "^6.1.0",
-        "supports-color": "^8.0.0",
-        "systeminformation": "^4.31.1",
+        "systeminformation": "^4.32.0",
         "terminal-kit": "^1.44.0",
         "yargs": "^16.2.0"
     },
@@ -51,12 +51,11 @@
         "@types/serialize-javascript": "^5.0.0",
         "@types/sockjs": "^0.3.32",
         "@types/superagent": "^4.1.8",
-        "@types/supports-color": "^7.2.0",
         "@types/terminal-kit": "^1.28.2",
-        "@types/yargs": "^15.0.11"
+        "@types/yargs": "^15.0.12"
     },
     "scripts": {
         "build": "tsc",
         "build:watch": "tsc --watch"
     }
-}
+}