added str util class, function to turn a display name into a safe dom selector str
include Utils class on page
json data now provides a displayName rather than a name
collection class now taking displayName, and converting it to a safe selector string for use in DOM
housekeeping
housekeeping
fixed typo
moving views out into their own file
rather than adding meta data to a collection, now introducing a model (ItemGroup) which contains collections for toPackItems and packedItems
when item is packed, it is removed from toPack collection and added to packed collection. rendering also implemented
added comments, minor housekeeping
changing dom structure and adding navbar
items now being moved between collections and rendering in the appropriate list