v1.7

• New: Images (_images) can be now organized in folders.
• New: Featured image can now be set to posts.
• New: Markdown images are now wrapped with figure tag and added support for image caption.
• New: Image tags now have class attributes similar to WordPress editor.
• Fix: Images were not uploaded for private repositories. (Thanks to https://github.com/lukaszpiotrluczak for the contribution)
• Fix: Webhook publish request fails to upload images.