made use of embedded resources for relationships in the response that contain a single link for a set of resources rather than enumerate the self link of each resource

fixed an issue where sometimes the wrong resource would be returned if it was fetched as part of a list, and later queried as a single resource

fixed issues with related resources that have a single link for a hasMany relationship (e.g. item.bitstreams)

Added community home page. This PR closes #89.

Fix Collection Homepage Errors

remove Matrix URL notation

Support embedded resources in rest responses

Refactored community and collection pages to use a shared component for most of the content. This PR connect’s to #89