Customize search results metadata display

Closes #66 

* Based on Jennifer's date calulation recipe, added customized date to the main title
* Replaced default rendering of document metadata with custom list of uniform title, author/creatorand imprint. 

PS: No MARC record specific rendering is done in this PR. 

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![searchworks-issue66-1](https://cloud.githubusercontent.com/assets/302258/3002652/b6a0e3d8-dd42-11e3-8b0f-474066bc077a.png)