Updating DOI minting configuration

In the switch between Creator & Contributor things were bumpy.
Bumping build identifier to "v2014.18"
Adding visual change to DOI
Bumping build identifier to "v2014.19"
Freezing to previous versino of Kaminari

It looks as though our Blacklight and Kaminari are out of sync.

Attempting to resolve:

```
NoMethodError: undefined method `prev_page' for
\#<Blacklight::Solr::FacetPaginator:0x007fd7b25bf310>
```
Bumping build identifier to "v2014.20"
Updating to include abstract
Freezing to a functioning version of therubyracer

http://stackoverflow.com/questions/19697441/cannot-install-gem-therubyracer-in-os-x-mavericks
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