1.0.0-beta.64

• Fixed loading stage order
• Improved accuracy for loading timings log
• Fixed loading progressbar appearance delay, i.e. no more visible progressbar when data instantly loaded
• Fixed setting of data on context when a prepare handler returns a new value, before changes context.data contained a reference to an original (loaded) value, for now Widget#context.data is always equal to Widget#data after a loadData() call
• Fixed action buttons on data load error page
• Added preset/upload
• Added a way to customise error message rendering on data load: if an error has a renderContent property its value is using as a config for rendering instead of default "red box"
• Added rejectData(message, renderContent) method to prepare handler API, for a rejecting data due to a bad format or other reasons
• View inspector:
  • Displayed data changes in case a config.data is used
  • Added D and C badges in sidebar when data or context of the view is different with a parent view
  • Fixed unnecessary sidebar scrolling on view selection
• Changed a behaviour when a preset is not found, for now just render nothing instead of warning badge
• Removed mode from context and a modelfree specific logic (with a single exception for special in routing, will be removed in next releases)