Version 3.0.0

This version has some breaking changes + some new features

New features

• Global asciidoc model
• Overview diagram about current document + all included and used files
  with warnings, errors etc. inside diagram
• Zoom level setup inside plantuml diagram editor internal preview
• Using SVG external view supports now always zoom capability...
• Possibility to define global custom attributes via preferences
• Render preferences like "attributes" and "environment" are now directly accessible by user from toolbar (dedicated action)

Breaking changes

• Output images are now always SVG
• Feature of persisting output images into source folder has been removed
• It was necessary to change custom environment preference key, so those
  preferences must be edited again (sorry)

More

• For details look at https://github.com/de-jcup/eclipse-asciidoctor-editor/milestone/37?closed=1