[offlineimap/f16] (6 commits) ...Add sphinx as build requirement

[Christoph Höger]

Summary of changes:

  4eaed28... Prepare 6.3.4 release (*)
  1ea4a5a... Fix version in file name (*)
  6182ee5... Fix manpage formatting (*)
  b2fba1c... Obviously, we'll need git for build (*)
  b40d26c... Fix patch numbering (and formatting) (*)
  23b6b50... Add sphinx as build requirement (*)

(*) This commit already existed in another branch; no separate mail sent