[owncloud/f21] (6 commits) ...add changelog entry for last git change

[Adam Williamson]

Summary of changes:

  c95c8f1... update to 7.0.2 (*)
  85f1afb... improve the postgresql documentation a bit (*)
  dd8ca31... more updates to database documentation (*)
  ade5a8a... update the package readme slightly (*)
  24586e3... revise and rename composer loader patch with latest changes (*)
  fd93542... add changelog entry for last git change (*)

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