add phpunit
broke down a bib into its holdings and items ids.
modified the app starting paths.
/{bibid} will return the bib record
/holdings/{bibid} will return the holdings ids
/items/{bibid} will return the item ids
created controlers for:

bib/items/{bibid} in xml, json or unspecified format (json)  Returns items in a bib record, regardless of holdings.
added code to merge mulitiple item records into the one parent bib.  Can be returned as xml or json