version 6.05
	removed some old files that were confusing tests
version 6.04
	removed typo from required perl version.
	can now call lock on already locked items
version 6.03
	Oh no, missed versioning for a while? In any case, this update
	removes 'bin/record_store_convert~' from the build.
	
version 3.23
	Space wasn't being reclaimed during transaction handling.
	This version fixes that, and also moves the documentation to
	underneath the __END__ marker and updates it.