CC-1960 Patch linkchecker to open database in UTF-8 charset
CC-1960 Patch linkchecker to open database in UTF-8 charset

The Python pymysql library opens databases using Latin-1 by default,
not UTF-8.

So, when opening a database, explicitly specify the UTF-8 charset.

au-research/ANDS-ResearchData-Registry,au-research/ANDS-ResearchData-Registry,au-research/ANDS-ResearchData-Registry,au-research/ANDS-ResearchData-Registry,au-research/ANDS-ResearchData-Registry