New WebSite version based on AsciiDoc / Asciidoctor

• Technical features
  • Move Markdown content to AsciiDoc
  • Move from Jekyll to Asciidoctor (used Travis CI and Asciidoctor Docker container)
• Content
  • Add new chapter about PR Workflow

Latest Markdown/Jekyll Website version

This release identifies the latest version of developer.exoplatform.org built with Jekyll 2 and written in Markdown