oasisdb tool failed to identify a 3.9.2 database since we dropped the marks table.
Remove minor dead code.
Merge pull request #25 from colincoghill/3.9.2-bugfixes

oasisdb tool failed to identify a 3.9.2 database since we dropped the ma...
Merge pull request #26 from colincoghill/release/3.9.2

Release/3.9.2
Merge pull request #27 from colincoghill/master

Bug Fix in DB Tool