v4.0.0

<dependency>
  <groupId>com.github.yvasyliev</groupId>
  <artifactId>java-vk-bots-longpoll-api</artifactId>
  <version>4.0.0</version>
</dependency>

What's Changed

• Fixed #137 by @yvasyliev in #140
• Migrated to OkHttp. Global refactoring. by @yvasyliev in #145

Full Changelog: v3.5.3...v4.0.0