0.09
	- Add version detection logic
	- Better diagnostics in test suite

0.08
	- In the test suite, report $BereleyDB::Error whenever a status assertion
	  fails.

0.07
	- Only evaluate DB_TXN_SNAPSHOT when it will actually be meaningful to
	  avoid errors on BDB versions that don't support it 

0.01-0.06
	- Initial release cycle