fix(core): update

package.json

@@ -17,13 +17,13 @@
     "@pushrocks/smartexpress": "^3.0.10",
     "lit-element": "^2.0.0-rc.5",
     "lit-html": "^1.0.0-rc.2",
-    "typescript": "^3.2.2"
+    "typescript": "^3.9.3"
   },
   "devDependencies": {
-    "@gitzone/tsbuild": "^2.1.8",
-    "@gitzone/tswatch": "^1.0.30",
+    "@gitzone/tsbuild": "^2.1.24",
+    "@gitzone/tswatch": "^1.0.46",
     "@pushrocks/projectinfo": "^4.0.2",
-    "tslint": "^5.11.0",
+    "tslint": "^6.1.2",
     "tslint-config-prettier": "^1.17.0"
   },
   "files": [
@@ -37,5 +37,8 @@
     "cli.js",
     "npmextra.json",
     "readme.md"
+  ],
+  "browserslist": [
+    "last 2 Chrome versions"
   ]
 }