Remove \OC\DB\ConnectionWrapper, have \OC\DB\Connection implement \OCP\IDBConnection directly instead
Extend \OCP\IDBConnection to cover more use cases
Remove implicit prepared statement cache and get the connection from the server container in \OC_DB
Move creating the database connection to the server container
Bit more cleanup
Use statements wrapper in \OCP\IDB
Fix tags unit test
Merge pull request #10985 from owncloud/db-cleanup

Cleanup database handling