0.9.1

New features

• Add Cursive::on_event to send simulated events.
• Add EventResult::and to combine callbacks.
• Allow custom color in ProgressBar.

Bugfixes

• LinearLayout:
  • Better geometry computation with constrained size
  • Fixed cache invalidation
  • Fix possible panic when removing children
• ScrollView:
  • Fix possible panic with full-height scrollbar
  • Fix possible panic with empty content
  • Fix cache
• Fix menubar focus after action
• Pin enumset version (fix compilation error)