4.04v - Various small fixes

1. We will be able to read variable passed like this. In additional chat variables `Old way passed variable name` just enter `username`. This will improve compatibility with older embed codes.
```
LHCChatOptions =
  {
      "attr_prefill": [
          {
              "name": "username",
              "value": "remdex"
          }
      ]
  }
```
2. `{args.` will be supported in canned messages and canned messages replace variables. E.g `{args.chat.chat_variables_array.player.firstName}`
3. Various small bugfixes.

For update just follow standard update procedure For manual update it's update_276.sql

4.02v && 4.03v - Widget and bot improvements

4.03v

1. Option to save bot response as template or quickly copy from another trigger.
2. Option to save trigger events as template.
3. If widget theme was used and theme has an image it should override bot logo.

4.02v

1. Visitors can download now chat as txt file. Can be turned off in the chat configuration.
2. Bot quick reply buttons now have option to set custom css class and icon content. Usefull while developing custom theme and using custom font.
3. Survey widget state will have an operator profile shown.
4. Various small changes for the widget modal windows. Paddings, button styles.
5. Mobile app was not transferring chat to another operator.
6. More CSS classes for widget elements to override them with custom CSS.

For update just follow standard update procedure For manual update it's update_274.sql and update_275.sql

4.01v - Bot workflow improvements

1. Option to skip event listener.
2. Custom event for Rest API call for external logging.

For update just follow standard update procedure For manual update it's update_273.sql

4.00v - Rest API Cache

• Option to cache Rest API request. Usefull if Rest API behaves just as intent, sentiment analysis because responses are always the same.

For update just follow standard update procedure For manual update it's update_272.sql

3.99v - Sentiment analysis per message

• Message aggregation for sentiment analysis per message implementation. https://doc.livehelperchat.com/docs/bot/sentiment-analysis-per-message
• Small security fix
• Possibility in statistic group by operator

For update just follow standard update procedure For manual update it's update_271.sql