Add faceted search by `medium` (see #57)
Show `isPartOf` link in details view (see #45)
Extract tables in details view into reusable block
Add `spatial` links to details view (see #58)
Add hidden debug link to mabxml source in details view
Regard active facet filter when showing other facets (see #57)
Tweak microform display in medium facet (see #57)
Add link to hbz union catalog to details view
Show URI if no facet label is found, add missing labels and icons
Update facet labels (#57)

See https://github.com/hbz/nwbib/issues/57#issuecomment-54934771
Fix issue with unencoded `#` in type and medium URIs (#57)
Update details view for new nwbibsubject and nwbibspatial fields

https://github.com/lobid/lodmill/issues/511#issuecomment-54952318
URL-encode all parameters for facets ajax call

Fixes issues with facets using hashes and pluses in queries