Close #139. Empty strings are disallowed for controllers, passwords and plugin instances.

Author: sebinside

package-lock.json

@@ -35,7 +35,7 @@
     "@angular/platform-browser-dynamic": "7.2.1",
     "@angular/router": "7.2.1",
     "@types/crypto-js": "^3.1.43",
-    "@codeoverflow-org/chatoverflow": "^3.0.0-2",
+    "@codeoverflow-org/chatoverflow": "3.0.0-3",
     "classlist.js": "1.1.20150312",
     "core-js": "2.5.6",
     "crypto-js": "^3.1.9-1",