Mark files_videoplayer as shipped

Ref https://github.com/owncloud/files_video_player/pull/27 + https://github.com/owncloud/files_videoplayer/issues/26#issuecomment-182968638

Wait until mariadb is up and running

encrypt passwords for files_external

Update info checker requirements

No longer evaluate appinfo/version

Fix typo

Remove notification on unshare and on errors

Shorter TTL on  findBinaryPath caching

scan the file in the write lock when uploading over dav

Properly check for legacy methods on IShare objects

The new shares are completely without parents eventually. But for some
current legacy reasons the methods are still around. But we should
properly check for them.

Fixes #22309

Add translations of unshare activities

Only show link shares for the current user

Revert back to non-webdav download link for public URLs

Fixes issues with browsers not happy with the token.
Fixes activities which were not sent.

Harden updater authentication

Chunk the cleanup queries to make sure they don't time out

Remember previous state of remember login checkbox

Fix versions path as share recipient when different than owner path

Make sure we do not show an icon if we can't display a share

- Reset tokens after 2 hours as discussed at https://github.com/owncloud/updater/issues/220#issuecomment-182033453
- Used BCrypt for storing the password in the config.php. This makes it substantially harder in case of a leakage of the token to bruteforce it. In the future we can evaluate also an HMAC including the IP. That's a bit tricker though at the moment considering that we support reverse proxies. Didn't feel brave enough to touch that dragon now as well ;)

Currently we have no way to display multiple links in the UI.
So just display the link share for the current user.

Fixes #22275

calculate and update the version of the encryption signature correctly