Fixed expressions

Fixed the expressions i broke in the lastest update :)

New Messages and read check reworked

Changed how the server checks for new messages, and new read receipts, also removed the written of files.

Fixed Users with no last message

Fixed issue with android app crashing, if user did not have a last message.

Added Error Message

Added error message if there is an error writing database.

Fixed Attachment issue

Fixed issues with null attachments causing syncMessage to crash.

Fixed potential db issue

Fixed potential DB issue if user does not have __CSDBRecordSequenceNumber in the Sqlite properties table.

Added error catching for no DB file

Now checks to make sure DB file exist, and will not continue until it does.

DB fix

db fix

Fixed stack tracing

Fixed error reporting not showing stack

Fixed Expressions

Fixed expressions causing older macs without expressions to crash