Bug Fixes:
#511283 - Request files properly with their path (Milan Crha)
#568302 - Create camel summary table if not exists on load (Milan Crha)
#575701 - Message disappear from unread vfolder, when reply (Srinivasa Ragavan)
#583344 - Do not leak pipe handles (Milan Crha)
#584101 - Configure fails with kerberos and LDFLAGS (Tiziano Müller)