- Replace the account name with wxid if it is empty. (wechat 4.0)
- Fix #31. (wechat 3.9)

Replace the account name with wxid if it is empty.

- Fix #28.
- Print more details during the process.

- Fix long nickname issues. (#26)
- Widen the key search range.

- fix some bug: #25,#26

fix #24.

- Support converting db key to sqlcipher rawkey.

Optimizing the speed for searching 4.0 db key.

- Update the algorithm for searching db key.
- Update and remove some dependencies.
- Fix some other issues.

Support decryption for weixin v4.0.0.26. (#23)