Fix for #129 along with many dependency version updates, especially rclone.
We are going to limit the number of open connection for sqlite to exactly 1 to not run into deadlock conditions. For this to work all flows had to be verified that they are not opening another connection if one is already open.
A transaction is passed down to all method which want to talk to the database.
This has unintended performance boost (for very high logs) since opening and closing db connections has some performance impact