PLT-1465 Added password requirements (#3489)

* Added password requirements

* added tweaks

* fixed error code

* removed http.StatusNotAcceptable

webapp/utils/constants.jsx

@@ -758,7 +758,7 @@ export default {
     MAX_USERNAME_LENGTH: 22,
     MAX_NICKNAME_LENGTH: 22,
     MIN_PASSWORD_LENGTH: 5,
-    MAX_PASSWORD_LENGTH: 50,
+    MAX_PASSWORD_LENGTH: 64,
     MIN_TRIGGER_LENGTH: 1,
     MAX_TRIGGER_LENGTH: 128,
     TIME_SINCE_UPDATE_INTERVAL: 30000,