remove Matrix URL notation

Support embedded resources in rest responses

Collection home page

Shows the following fields if they exist:
* title
* logo
* introductory text
* news (also referred to as sidebarText)
* copyright text
* license

Fixes https://github.com/DSpace/dspace-angular/issues/63

Full item page

Travis build timeout: this connects to #101

Add type to mock data

Simple Item Page - Tests & Docs

This merge closes #46