closed livingstoneonline/livingstoneonline#91

Catalogue: access for spectral images

awisnicki

The catalogue needs to have the download arrows/download functionality added to the display. Clicking on an arrow for spectral images would open the new download overlay. screen shot 2016-11-02 at 12 14 39

nigelgbanks

Should be sorted on stage now.

awisnicki

Looks good. Thank you