More squib coverage

[bambooforest]

We could probably get more phonological squib coverage if we went through

http://ldh.clld.org/

E.g.:

https://pure.mpg.de/rest/items/item_403489_3/component/file_403488/content

926,bwt_ebah1990,ph,bwt2_ebah1990_phon.pdf

[bambooforest]

Might as well collect these as they come about:

1210 blb bilu1245 Bilua https://openresearch-repository.anu.edu.au/bitstream/1885/146708/1/PL-540.pdf

[bambooforest]

This issue could also add more URI coverage.