[bluefish/f19] (6 commits) ...Some fixes from upstream

[Paul Howarth]

Summary of changes:

  b18ce6e... Move to unversioned documentation directories (*)
  29a18fe... Fix bogus changelog dates (*)
  bf0f86c... replace non-free jsmin.py (*)
  e1c5f53... replace non-free jsmin.py (*)
  4bdb804... Merge branch 'f20' back into master (*)
  2ba8aff... Some fixes from upstream (*)

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