Version 1.5.3 Better 'no such contact' error message
There have been a lot of internal changes in this release, and one user-facing change to improve the error message when a non-existent contact is specified in a command.
Before this change, non-existent contacts resulted in a fairly cryptic error message consisting only of the given non-existent contact ID. From now on the problem is actually explained to the user.
- Added a proper error message when a non-existent contact is specified