Merge branch 'maint-0.4.5'

changes/ticket40245

src/feature/dirauth/dirvote.c

src/feature/dirauth/dirvote.h

src/feature/dirauth/process_descs.c

src/feature/dirauth/reachability.c

src/feature/dircache/dircache.c

src/feature/dirclient/dirclient.c

src/test/test_dir_handle_get.c