Remove OC_DB_StatementWrapper::numRows()

Using this method will result in an unneccesary extra SQL query (which also may
return an incorrect result because the underlying table changed in the
meantime).

In general:

If you are performing an UPDATE, DELETE or equivalent query,
OC_DB_StatementWrapper::execute() will already give you the number of
"affected rows" via \Doctrine\DBAL\Driver\Statement::rowCount(). This will
not work for SELECT queries, however.

If you want to know whether a table contains any rows matching your condition,
use "SELECT id FROM ... WHERE ... LIMIT 1".

If you want to know whether a table contains any rows matching your condition
and you also need the data, use "SELECT ... FROM ... WHERE ...", then use
one of the fetch() methods.

If you want to count the number of rows matching your condition, use use
"SELECT COUNT(...) AS number_of_rows FROM ... WHERE ...", then use one of the
fetch() methods.

correctly mark app management active

[encryption] fix getUser Helper

[encryption] fix rename of shared files

Symfonys addCollection() with multiple arguments is deprecated

* leo-b/fix_router_deprecation:
  Symfonys addCollection() with multiple arguments is deprecated, fix deprecation warning

Removed numRows usage from encryption app

Added fseek fallback to the encryption app

numRows on Oracle always seem to return 0.

This fix removes numRows usage from the encryption and sharing app.

This fixes unit tests and potentially the encryption app itself
(migration status) when running on Oracle

only walk an array

Fetch all appconfig values for an app at once and cache the results

Don't use xcache in case admin auth is enabled

Finally kill mdb2 master

Added missing mime types

DB: Support DECIMAL(precision,scale) syntax in XML

This is mostly to fix acceptance tests that have a .cc file.

Also fixed typo in python mime type.

* owncloud/master: (30 commits)
  Added entry with ext storage info
  [tx-robot] updated from transifex
  [tx-robot] updated from transifex
  clarifying license
  remove unused method tail()
  reliable detect encrypted files
  [tx-robot] updated from transifex
  remove duplicated code
  add missing quotes + field declarations
  Do not use xcache variable cache if cache size is 0.
  always show home breadcrumb in files view
  Use DEBUG instead of ERROR when favourites not found. Fix #6419
  update file cache for target file
  only remove encryption keys if a real file gets deleted, skip this method if a file outside of /data/user/files was deleted
  Fixed JS plural function to be per app
  call set password hook because it doesn't get triggered during test execution and fix paths
  Do not use L10n when logging exceptions
  Also add default to the \OCP\IConfig interface
  add default parameter for AllConfig->get*Value()
  always show 'Deleted Files' breadcrumb
  ...

Conflicts:
	lib/private/memcache/xcache.php

extend the encryption stream wrapper to handle local files and add a fall back for file size calculation if the storage doesn't support fseek

Fixed download file from URL error messages