Graticule 0.3.4

• Accepting a warning that is not one of the numbered rules, such as unmatched highlight names, no longer blocks the map.
• A table of California counties is no longer taken for Canada: a column called state does not end the search for a region before counties are tried.
• init no longer fails on a county time series of 150,000 rows, and it names no year when the cells are missing. --key accepts a column with a comma in its name. A missing or unreadable file is reported as a file error, not as a bug.
• Class edges that are close together are printed with enough decimals to read differently.
• Dropping an Excel workbook on the playground leaves the current map and its settings alone.