Keep only latest IDE in recent connections

[code-asher]

If you connect to a newer version of an IDE for a project/workspace combination, it should replace any existing recent entry.

Otherwise, you get two identical entries with no way of telling which is which. We could add the IDE version, but is there a case where you would want to connect to the older IDE?

Might not be a bad idea to add the version anyway, though.

[code-asher]

There is a version column now.

And, there is also now an update mechanism by which if you launch the old connection it will try to upgrade to the latest version (if you accept the prompt) which will remove the old connection.

I think this gives a good middle ground where users can choose to have multiple versions, but it is easy to keep one up-to-date version if that is what you want.