Test for flaw related to month rollover
Test for flaw related to month rollover

* GitHub Issue: https://github.com/joeyates/metar-parser/issues/43
* This test does *not* yet show the flaw - need to create a filing test
  for the situation indicated in the issue.

joeyates/metar-parser,douglasr/metar-parser,joeyates/metar-parser,douglasr/metar-parser