The lockSSL setting has three possible values:
0 = do nothing when in the backend
1 = show a blank page when accessing the BE from non-SSL
2 = redirect to the https version of the BE

The option "1" is nowadays not a valuable option and
"hiding" the TYPO3 Backend can be done via htaccess
or other access rules.

Therefore the lockSSL setting only has a bool state now:
 * When false do nothing
 * When true, redirect to the SSL version of the BE

Resolves: #75357
Releases: master
Change-Id: If326a725cc7c4b7b60cbb20c70704d55bf0111ee
Reviewed-on: https://review.typo3.org/47483


Reviewed-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Tested-by: Morton Jonuschat <m.jonuschat@mojocode.de>
Reviewed-by: Daniel Goerz <ervaude@gmail.com>
Reviewed-by: Christian Kuhn <lolli@schwarzbu.ch>
Tested-by: Christian Kuhn <lolli@schwarzbu.ch>