1.0.0-beta.11

• Client
  • Removed toc-item view
  • Replaced Widget#getSidebarContext() and Widget#getPageContext() for Widget#getRenderContext()
  • Added placeholder option for select view
  • Fixed button view styles
  • Fixed tabs init value setting when name option is specified
  • Added onInit and onChange options for tabs view
  • Extended expanded option for tree view, which can be a function now
  • Added onToggle option for tree view