Unified image handling throughout Chandler so images are specified without path but with extension. All image loading is done by wx.GetApp().GetImage (name) where name is the name of a file including extension but without a path. This allows us to centralize platform specific image handling, store images in a location other than /application/images, include image types other than pngs, and handle errors better.
Added code to display shared status to items in the sidebar, but couldn't test it because sending email is broken due to a repository bug. Helped Andi narrow down the repository bug
Added code to gray text of empty collections in the sidebar
Updated Windows and Mac to the newest Wing.
Tested new sidebar code on Windows and Mac. Spent some time trying to narrow down a Mac specific bug, but still don't understand it. Also narrowed down and fixed a Windows specific display problem where the table loosing focus didn't update it's selection color.