closes#26, notes list in notes pane
closes#79, add icons for new object types
fixes#71, Metadata pane should be refreshed on a notify() event for the selected item
Scholar.TreeView is now Scholar.FolderTreeView (SourcesTreeView later? depends)
Some changes to the way FolderTreeView works.
New Scholar.ItemGroup -- used by FolderTreeView and ItemTreeView.
the root folder is not currently displayed -- doesn't really matter because we are changing the way it all works.
(note: the Scholar.Items.getAll() function does not seem to be working correctly -- try clicking on the library)
ScholarLocalizedStrings moved out of sidebar.js and into Scholar.LocalizedStrings
Rudimentary creator adding/editing. lots of things to work on, because it doesn't work.
I also started implementing some of the localization. There is a lot to do still, and I am still learning a lot of the Firefox extension technologies (XUL, adv. Javascript, etc.) but things are going great.
