added new opts for listmailboxes
include Important
include Important
include Important
include labels
Expose mailbox creation on IMAP client and add ability to delete mailbox
Merge pull request #66 from jtblin/jtblin/add-create-and-delete-mailbox

Expose mailbox creation on IMAP client and add ability to delete mailbox
Merge pull request #10 from andris9/master

上游合并