[uwsgi/el6] (7 commits) ...Updating to newer version

[Jorge A Gallegos]

Summary of changes:

  c2bc6e5... -plugin-http doesn't exist, is in -plugin-common (*)
  bdc6fdc... Fixing upgrade-path issues (*)
  b2f4d05... Conditionally enable systemd integration (*)
  b7d3577... SystemD service definition sysconfig support (*)
  3ccbbc7... Rebuild for https://fedoraproject.org/wiki/Changes/Ruby_2.2 (*)
  6e79929... Simple SysV script (*)
  62e4bf0... Updating to newer version (*)

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