[couchdb] (6 commits) ...Add systemd notify support

[Peter Lemenkov]

Summary of changes:

0f5feed... - Add /usr/libexec/couchdb wrapper to ExecStart from system (*)
  f4f5c04... - default.d/ and local.d/ never worked with couchdb + syste (*)
  e4f42ac... - SELinux: Use /usr/libexec/couchdb wrapper for systemd Exe (*)
  946ed6d... Add missing script (*)
  4c25dd1... spaces instead of tabs, bump to -8, retag (*)
  e63180e... Add systemd notify support (*)

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