Added to the Bot Builder:
1. Function for uploading and downloading files in JSON format;
2. Support of comparison operators in the "Condition" block for local variables;
3. Notification when exiting the script Editor without saving changes;
4. Block "Programmer". The list of block's functions:
- perform mathematical and logical operations with numbers, strings, date and time;
- add all kinds of variables from the Bot Builder;
- write and run code in JavaScript;
- highlight different code functions and JavaScript syntax errors;
- save values of variables when changing;
- use regular expressions;
- test code execution;
- check for errors in the data;
- take into account the time zone for date and time.
5. Fixed an error of entered data in the "incoming Webhook" block when saving parameters.
