Moved google books api request to client side (avoids quick api limit)
Merge pull request #233 from msievers/client-side-google-books-api

Moved google books api request to client side (avoids quick api limit)
Delete record cache entry in case record is empty
Moved mixin definition in padel_padding_support to top-level (may solve the sass mixin issue on production server)
Add all the available Primo systems.
Fix Port.
Workaround for people referencing old fashioned searches through hashed_id rather than using permalinks