Encode game stderr stream in utf-8. Updated deps.

semver@5.5.1
esline@5.4.0

package.json

@@ -43,7 +43,7 @@
     "mkdirp": "^0.5.1",
     "request": "^2.87.0",
     "rimraf": "^2.6.2",
-    "semver": "^5.5.0",
+    "semver": "^5.5.1",
     "tar-fs": "^1.16.3",
     "uuid": "^3.3.2",
     "winreg": "^1.2.4"
@@ -51,7 +51,7 @@
   "devDependencies": {
     "electron": "^2.0.7",
     "electron-builder": "^20.28.1",
-    "eslint": "^5.3.0"
+    "eslint": "^5.4.0"
   },
   "build": {
     "appId": "westeroscraftlauncher",