Use std::make_pair, rather than the std::pair contructor.
Use google logging instead of assert.h.
Small improvement in how FileDB lookups return entries.
Put the members of FileDB protected by lock_ together.
Add more verification of the hash of entries.
Send params on the URL for DELETEs
Merge pull request #284 from AlCutter/delete_is_not_post

Send params on the URL for DELETEs
Use uint64_t for the sequence number everywhere.
Replace uint64_t with int64_t for sequence numbers and tree sizes.
Convert all the tree sizes and leaf index to int64_t.
Add a few more CHECKs.
Some more validation in AsyncLogClient.
More checks.