Fix most of Terminal.api timing issues

package.json

@@ -30,6 +30,7 @@
   },
   "devDependencies": {
     "@types/chai": "^3.4.34",
+    "@types/deep-equal": "^1.0.1",
     "@types/glob": "^5.0.35",
     "@types/jsdom": "11.0.1",
     "@types/mocha": "^2.2.33",
@@ -39,6 +40,7 @@
     "@types/webpack": "^4.4.11",
     "@types/ws": "^6.0.1",
     "chai": "3.5.0",
+    "deep-equal": "^1.1.0",
     "express": "^4.17.1",
     "express-ws": "^4.0.0",
     "glob": "^7.0.5",