More error reporting on these assertions.
Be more careful about enabling zip64 (fixes zip_compression_store test)
Add test for empty zip64 file
Fix reader to read empty zip64 files
Test that we can read the Zip64 extensions that we write.
Comment this test a little bit.
Rename write/read round-trip test.
Don't try to verify deflated data if zlib is unavailable.
Test detailed zip format for regular file entry.
Fix tests when built w/o zlib.