Version 3.0.0.dev2

Second pre-release of version3

• Mix encrypted and normal content with inject_id and delete_id
• custom suffix for session/local storage remember_suffix (wait a minute, it's actually a prefix...)
• location_path isn't used anymore to find the keys
  • each level/password/obfuscation is converted to a unique id
  • every credential decrypts all ids with their keys that are associated with the credential
  • these ids with their keys are also used to decrypt the search_index