detect shared storymaps
Add lock file
Disable edit selection if storymap locked
sharing; add type property to storymap folders
Add type property when create or copy storymap
clean up gdrive; don't copy lock file
Show share info in storymap list w/images
added gigapixel to examples needs thumbnails
Update app.py options for new fablib; add arya and bosch thumbnails

Conflicts:
	website/app.py
Chaneg share menu item text to collaborate; use last modifying user name in edit page lock message
Fix return-key bindings on opening modal sequence
Merge branch 'sharing' of github.com:NUKnightLab/StoryMapJS into sharing

Conflicts:
	website/app.py
	website/templates/index.html
Merge branch 'sharing'
merged