oracle does not need sequence suffix, manually set database name to allow fetching db schema, don't shutdown db - we are using utf8 to connect
use USERS tablespace whn none is given, only needed when we need to create a user, does not need to be stored in config
fix oci dbschema test
add missing backticks, use executeAudited in post_deleteGroup and post_removeFromGroup
use executeAudited in sabredav lock
coding style
adding default to $hint within ctor of DatabaseSetupException
remove default tablespace in parameter
Merge pull request #3721 from owncloud/oracle_setup_fixes

Oracle setup fixes