Add a CLI command that deletes an LDAP config

With this change LDAP configurations can be managed completely from
the command line.
Close session for files_trashbin

When restoring huge folders the interface will be unresponsive otherwise
Clear session before setup

Fixes https://github.com/owncloud/core/issues/11861
user_ldap: Reimplement convertSID2Str() without BCMath dependency.

Also explicitly format sub-id integers as unsigned, which is required for
32-bit systems.
Update Symfony/Console to 2.5 & Update Symfony/Routing to 2.5
Fix ctor call in OC\Core\Command\Upgrade
Merge pull request #11172 from owncloud/user-ldap-no-bcmath

Fix ldap convertSID2Str() / Remove BCMath dependency
Capitalize Checks in admin page
Merge pull request #11923 from owncloud/admin-connectivitycheckscapitalized

Capitalize Checks in admin page
First check whether it is the default config before touchign

Potentially fixes https://github.com/owncloud/core/issues/11678
Merge pull request #11921 from owncloud/symfony-composer

Symfony composer
Update Pimple to V3.0
Merge pull request #11918 from owncloud/pimple-composer

Update Pimple to V3.0
update 3rdparty to master
update 3rdparty to master
ability to add bower resources

* add addVendorScript & addVendorStyle
* refactoring of addScript and addStyle
* add shortcuts vendorScript and vendorStyle
replace moment.js with bower version

* fix JS unit tests
Support HTML in logo claim
Merge pull request #11924 from owncloud/firstCheckIfItIsDefaultConfig

First check whether it is the default config before touching
[tx-robot] updated from transifex