- updated to 1.13
- Removes the cached read-only and read-write accessors
for the time being. (These were only available from another
development releasse.
- Much more brutal thread-safety testing.
- Fixed thread-safety problem with the global hashkey storage.
- Lots of refactoring in the C code.
- Instead of storing an index in the CV, we store a pointer to
the hashkey struct.
- Implements cached read-only and read-write accessors.
Details on what that means are in the documentation.