encryption is now configurable in 3 ways: encrypt meta (local cassandra), encrypt blob remote, encrypt blob local
fixed encryption that returned an empty string when iv was given
added encryption package to export
added decryption to gemessageidswithheaders, refactored decryptMessageIfNecessary method
reverted keyspace name back to camel case "ElasticInbox"
updated author notes
reverted keyspace name to camel case "ElasticInbox"
refactored encription settings to set local, remote, metastore encryption to true/false
added configuration parameters for encryption to yaml files