1.15.0

Major improvements:

• Add support for arrays with include (#681 by @justafish)
• Add babel preset on serverBuild (#707 by @stephane-r)
• Support for "do" tag (#703 by @drzraf)
• Update xo and code syntax by @RobLoach
• Deprecate Node.js 8 from testing by @RobLoach
• Support for Source Maps (#700 by @drzraf)
• Search for block within all ascendants instead of parent only (#698 by @drzraf)

Minor improvements:

• Fix autoescape for empty includes (#687 by @tgabi333)
• Fix filters with empty string input (#690 by @tbence94)