v0.13.0

• Added
  • New: Start the server with -editable to allow visitors to edit pages - turns the Wave server into a realtime collaborative wiki.
  • New: Add a whiteboard (ui.canvas_card()) to a page to enable collaborative drawing between the page's visitors.
  • New: Add a chat room (ui.chat_card()) to a page to enable discussions between the page's visitors.
  • Checkpointing: Save and restore application and session state on restart.
• Changed
  • Display Wave logo on empty pages instead of spinner.
  • Reduce size of h2o_wave wheel file.
• Fixed
  • Display scrollbars if content overflows in flex layout.
  • Fix flex layout viz rendering issues in Safari.
  • Fix form layout issues in Safari.
  • Improve tab_card example.
  • Improve visual design of footer in uitable.
  • Invalidate page when layouts or a card's box is changed.
  • Make stats cards not overflow 1-unit high zones.
  • Prevent iframes from overlapping other elements in forms.
  • Remove hard-coded "main" default zone in flex layouts