v9.0

• added: admin feature to delete widgets from the database
• added: max columns for group tool based widgets can now be hooked
• added: setting a widget page title sets it as a page title
• added: widget pages are now their own entities
• changed: advanced widget settings now show in a tab
• changed: custom widget title is now returned from getDisplayName
• changed: more changes for Elgg 3.0
• changed: more changes for Elgg 3.0
• changed: moved extra contexts page handler to route registration
• changed: moved widget_manager_check_collapsed_state function into class
• changed: started updating code for Elgg 3.0
• changed: toggle form elements now are switches
• changed: widget cache now uses system_cache
• changed: widget settings save now uses elgg/Ajax
• changed: widgets no longer cache private settings, now done by core
• feat: added collapse/expand functions to widget class
• fixed: force correct column widths for widgets
• removed: no longer support fixed height setting on widgets
• Spanish translation