v2.9.0

New features and Improvements

• Tag mode for creating rectangle by dragging
• Possible to create rectangle tags in any direction #163
• Proximate clicks and deferred mouse drag for simplified tag creation
• Improved cursor handling for tag actions
• Improved automatic popup placement
• Change image tile resolution on viewer resize

Bug fixes

• Make WebGL support check less restrictive #262
• DOM elements are shown when viewer container height is set to auto #264