Revert "Use OCP classes as much as possible in files_external"

fix getting mount points when passing a path to the files:scan command

Fix duplicated line in doc block

Upgrade 3rdparty submodule for docterine v1.2.6

[Master] Delete OCS ID from DB if none is specified

lock parent folders for the owner when locking a shared file as recipient

[master] Remove OCS IDs

If no OCS ID is specified in appinfo.xml and an app update is triggered and a OCS ID is stored in the DB we should clean the value.

Ref https://github.com/owncloud/activity/issues/320#issuecomment-117937748

While making the AppStore ready for 8.1 I also deleted some dummy entries which means that these IDs do not resolve anymore. We should remove them to prevent errors such as https://github.com/owncloud/core/issues/17307

Ref https://github.com/owncloud/activity/issues/320#issuecomment-117691867

Revert z-index changes

Fix scanFile signature to avoid boring warning

This reverts commit 4edf388a.

This reverts commit 71e5bc18.

Only do the description kung-fu on strings

Clean up part file only once, not twice on error

Changed broken links to php manual

Catch more error codes thrown by federated shares

Use OCP classes as much as possible in files_external

Most of the time it doesn't make sense to forward Guzzle's
RequestException, so we convert it to StorageNotAvailable instead.

This prevents unpredictable error codes to block access to unrelated
folders needlessly.

[upgrade] add verbosity check and show repair info & steps

[upgrade] show timestamp for output during upgrade

Fix undefined offset

OCS Share API link shares now always have an url

Small perf tweak in strlen loop

Remove unneeded getetag entries in properties table