First line of entries is not always capitalised

[harrylloyd-bl]

Current behaviour: Some entries start with the final lines of the previous entry e.g. "Bought in April, 1866."

Expected behaviour: The first part of an entry in the catalogue is the title, and the first part of this is always capitalised. All entries should therefore start with a capitalised section. This should be done through the application of a regex that identifies specifically capital letters

[harrylloyd-bl]

Partially fixed by improving shelfmark detection in dc88316 & 7973758. Also added logic to recognise "Bought in" specifically, and reorder lines as a result 8d9e856