More Cryptography, Android Content API for Files

AES/Twofish end-to-end cryptogram (encrypted text message, unencrypted attachments).
Single word or whole block.

Attachment/message saving with Android content API.

Auto vacuum database to reduce size.

Checks for common network errors.

Improved message parsing.

Message datetime conversion to local device time, original is preserved.

Option to delete all messages, keeping account settings.