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
[fix] You shouldn't lose your changes if you select another item in the middle of editing a field.
[fix] The dropdown menu to select notes doesn't steal the focus
[interface] Multi-notes functionality (waiting on data layer)
[docs] Major internal documentation written for itemTreeView.js and collectionTreeView.js (this actually does work ;-))
The collections list does not resize randomly now.
The pane on the right stays open all the time - even when 0/multiple items are selected. This is to avoid frequent resizing of the items pane.
Temporarily, if the first "word" of a field's value is more than 29 characters long, it will set it to crop. This is for the long URLs, etc.
