SQLCipher 3.4.0 Beta

Hi folks,

We are entering a beta period of SQLCipher 3.4.0, this is available in source only format at this time here on our prerelease branch. This version will be based on SQLite 3.11.0 and include a new PRAGMA cipher_provider_version to query the version of the cipher provider library itself that is included with the SQLCipher library. If you have the opportunity to try this version of SQLCipher out, we welcome your feedback. Thanks!