Other headers on browse page

[mkonik]

There are two headers on browse page: Composer, Title. There should be two other: Source, RISM record.

1. Source should be displayed as combined RISM siglum and shelfmark - e.g.: PL-Kk: Kk.I.10. It should link directly to the digitized source in repository / portal (depending on what works better)
2. RISM record should be displayed as See in RISM \ Zobacz w RISM and shoul link to parent record in RISM Opac.

[craigsapp]

For user interface simplicity and focus, the RISM link should be on the work page rather than on the browse page. This also applies to links to the scans.

For (1): what should the title of the table heading be? "Shelfmark"/"Znak półki"?