Show results from other tenants when the tenant is not private.
Merge pull request #2894 from bp323/includeExternal

Show results from other tenants when the tenant is not private.
Adding includeExternal to autosuggest
Updated license header
Remove unused widgets
Updated Sakai references to OAE references
Self review
WIP on consolidating widget loading
Updating license URL to existing one
Merge pull request #2900 from nicolaasmatthijs/license

License + URL clean-up
Merge origin/master and fix conflicts
Finish widget loading consolidation into util function, finish unused keys test