Sync with upstream @24213649.

Adding GNU/kFreeBSD support. As requested here:
http://code.google.com/p/leveldb/issues/detail?id=38

Use uint64_t instead of size_t in MemEnvTest. As pointed out at
http://code.google.com/p/leveldb/issues/detail?id=41


git-svn-id: http://leveldb.googlecode.com/svn/trunk@52 62dab493-f737-651d-591e-8d6aee1b9529
5 files changed