Provide an implementation of the fileapi for oc6 build on top of the old api
use ===
extract interfaces from fileapi for public namespace
update phpdoc for public fileapi
move public files api to a clearer namespace
move filesystem expceptions to global namespace
improve phpdoc for the public files interface
add storage backend interface to public namespace
adjust test cases to namespace changes
Merge branch 'master' into fileapi-foreward
cleanup public storage interface a bit
- giving the user a new id for each test run in order to prevent reuse of e.g. permissions data in the database
- setting the current user id because \OC\FilesView relies on \OC_User::getUser()
Merge pull request #4712 from owncloud/fileapi-foreward

Provide an implementation of the fileapi for oc6 build on top of the old api