[glances/f20] (4 commits) ...Update changelog

[madko]

Summary of changes:

  c38ddc4... Replace BR python-setuptools-devel BR with python-setuptool (*)
  ad3e773... Update to 2.1.2 (*)
  c704db8... change python-setuptools-devel to python-setuptools (*)
  6456323... Update changelog (*)

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