Add support for orphan materials that don't have a real library.

This includes ON-ORDER material, online only material (i.e. SUL) and materials in the Physics library.

Closes #310 
Closes #466 

**None of the record in the below screenshots have location access panels before this PR.**

#### 492183 Physics
![492183-physics](https://cloud.githubusercontent.com/assets/96776/3768984/ce0801f2-18dc-11e4-8edf-ab4507ae19d4.png)

#### 9716876 On order
![9716876-on-order](https://cloud.githubusercontent.com/assets/96776/3768981/cbf32f04-18dc-11e4-975a-4dae5539ce5a.png)
@jkeck Can multiple libraries hold the same item and one of those be a no holdings library?