googledrive: New getFolderFiles() to list MoneyLog files
googledrive: New getFolderFiles() to list MoneyLog files

Note that the query string includes plain text files (*.txt) and JavaScript
files (for a possible config.js).

aureliojargas/moneylog,aureliojargas/moneylog,aureliojargas/moneylog,aureliojargas/moneylog