Bump socket.io juuust a bit

This solves a minor, but nasty UTF-8 encoding-deconding problem, solved
by socketio/engine.io-parser#81 and released
since socket.io v2.0.0. Maybe the newer version would work too, but I'm
too lazy to check right now.

browser/package.json

@@ -20,7 +20,7 @@
     "almond": "~0.3.3",
     "raven-js": "^1.1.15",
     "requirejs": "~2.3.6",
-    "socket.io-client": "~1.0.6",
+    "socket.io-client": "^2.0.0",
     "require-handlebars-plugin": "^0.8.1",
     "jquery": "~2.1.0",
     "backbone": "1.1.2",

browser/require.config.js

@@ -12,7 +12,7 @@ require.config({
     'json': 'node_modules/requirejs-json/json',
     'text': 'node_modules/requirejs-text/text',
     'underscore': 'node_modules/underscore/underscore',
-    'socket.io-client': 'node_modules/socket.io-client/socket.io'
+    'socket.io-client': 'node_modules/socket.io-client/dist/socket.io'
   },
   hbs: {
     disableI18n: true
@@ -24,6 +24,6 @@ require.config({
     },
     'underscore': {
       exports: '_'
-    },
+    }
   }
 });

server/package.json

@@ -11,7 +11,7 @@
   "dependencies": {
     "engine.io": "^3.4.0",
     "mongoose": "^5.9.9",
-    "socket.io": "^1.0.6",
+    "socket.io": "^2.0.0",
     "winston": "^3.2.1",
     "express": "^4.17.1",
     "@types/node": "^13.13.0",