This is follow-up for 56c66ee486 allowing admin
to see private repositories, even when not being member of them.

- #1496: fallback plain text
- #1002: add date header
- #913: fix encoding of header

Signed-off-by: Unknwon <u@gogs.io>

Signed-off-by: Unknwon <u@gogs.io>

This change fixes the output from /{{ username }}.keys so that it can work in
a ~/.ssh/authorized_keys file

- fix delete user but repository watches are not decreased

- templates/org: mirror fix on name output
- routers: add missing error check

- routers/user: little code format
- conf/locale: update French locale

This is a balance between speed and nice code, where speed has won. To prevent a repository query for each action the ownername is match with the current user.

It would be "cleaner" or "better" if we fetch the repository each time. Another option is to add the RepoOwnerID to action