cyrus-imapd-2.4 is marked for autoremoval from testing

[Debian testing autoremoval watch]

cyrus-imapd-2.4 2.4.17+caldav~beta10-18 is marked for autoremoval from testing on 2015-09-02

It (build-)depends on packages with these RC bugs:
777962: libopendbx: library transition will be needed when GCC 5 is the default
791147: libopendbx: library transition will be needed when GCC 5 is the default