1.0.0-alpha3 – vaadin-upload Third Alpha Release

• Add notify for files array property
• Remove file-add and file-remove events, use data binding to files instead
• Remove nomultiple property, use maxFiles = 1 instead
• Replace custom file template with custom content tag for file list
• Remove cancell all feature
• Add styles for disabled upload button
• Fix file remove animation jump in Safari
• Visual changes to avoid confussion with status and action icons
• Fix styles when using shadow DOM
• UI refinements and CSS fixes
• Improvements in documentation
  • A lot of rewording and language corrections in asciidocs
  • Document i18n and files properties
  • Document style mixins
  • Document vaadin-upload-file element events
  • Align README structure across Vaadin Elements
  • Update screenshots