There are a number of examples where dimensions/units are not being parsed correctly. One situation seems to be where there are three dimensions (width/height/dept) but no space between the final measurement and the units
e.g. Accession number T12624
Dimensions listed as "Egg: 122 x 147 x 122mm\r\nPlinth Designated size:500 x 500 x 500 mm"
Width = 122
Height = 147
Depth = ""
Units = "122mm"
(in both csv and json)
Adding image thumbnail copyright line, adding artistRole column which…
… fixes #13, tidying up dimension parsing to fix #10 but only dealing with w, h, d for now #11.