Add option to only show subscribed folders (IMAP)

[cls]

LogicMail uses the LIST command to get a list of imap folders. This will return the entire list of folders available on the server. It should use LSUB instead.

 http://tools.ietf.org/html/rfc3501#section-6.3.9

[cls]

Add "Subscribed folders only" option for imap clients

[octo]

Will be accepting this patch (with review during integration) Just need to decide whether to put this in 1.0.x, or if its time to create a 1.1 branch.

For 2.0, a more sophisticated implementation will be needed, that more closely matches the UI of a conventional E-Mail client. (i.e. config dialog for folder subscriptions, etc.)

[octo]

Merged the patch, which adds an option to only show subscribed folders. This just switches the command from LIST to LSUB when getting the folder list, so the user will need to refresh their folder tree to see the change.

[doni49]

How do I tell it which folders to subscribe/unsubscribe?

I see the option "Subscribed folders only" but even though it's selected, every folder still shows up.

Thx!

[octo]

This patch was just for adding the ability to choose whether LogicMail would show all folders, or just subscribed folders. Actually offering a GUI for changing the server-side folder subscriptions is way beyond the scope of this issue.

Implementing that would have to be a whole separate feature request, and would definitely take a lot more work than what was needed for this patch.

In many desktop e-mail clients, you can usually modify the subscribed folder settings, if you want a way to do it now.

[octo]

Oh, and one more quick thing... After checking the "show only subscribed" option, you do have to refresh the folder listing for it to change to actually show only subscribed folders.