Split linked and unlinked series.

Remove MARC 490 from linked series and display it separately in bibliographic section.
Moved the rest of the series to the upper metadata section.
Merge pull request #246 from sul-dlss/linked-series

Split linked and unlinked series.
more specific selector for .document book cover
Merge pull request #250 from sul-dlss/book-selector

more specific selector for .document book cover
Add OSD dependency and include all helpers/assets.
Make mods upper metadata section dl-invert to be consistent w/ mods.
Merge pull request #248 from sul-dlss/osd

Add OpenSeadragon viewer for stacks images
installs advanced search gem and run generator
adds advanced toolbar with active class helper
adds default functionality to adv search
begins to add integration tests