Record toolbar customization

Closes #10 

Customized record view toolbar based on mocks. Reverted to custom `div` toolbar from Bootstrap `navbar` component.

'Cite' button/link, 'EndNote' and 'RefWorks' links are visible only if the record supports cite and export formats. 

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![searchworks-issue10-1](https://cloud.githubusercontent.com/assets/302258/2922451/32af4092-d702-11e3-8233-a144b5e09d7e.png)
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![searchworks-issue10-2](https://cloud.githubusercontent.com/assets/302258/2922452/32af6d74-d702-11e3-931f-46796bb68820.png)