Discovered meaning of some values of ui_advmode_menu enum.
Use the three-argument form of open()

This separates the openmode from the filename, and is both clearer
and safer.
Use Digest::MD5 instead of shelling out

It's in Perl's core distribution, so this doesn't add a dep.
Identifying world::unk_59e78 as a save version number.
0.40.09 OS X offsets
Run the struct size check on my usual test save.
Bump version up to v0.40.10
Find main windows globals and run the automatic struct size check.
Add 0.40.10 OS X offsets
Add start_dwarf_count for 0.40.10 on OS X
Run find-offsets to find linux globals.
Merge branch '0.40.09-osx-offsets' of git://github.com/lethosor/df-structures
Merge branch '0.40.10_osx_offsets' of git://github.com/tareqak/df-structures
Merge branch 'original_save_version' of git://github.com/eswald/df-structures
Merge branch 'master' of git://github.com/CarabusX/df-structures
Merge branch 'master' of git://github.com/eternaleye/df-structures
Update CSV