Deprecation: #81951 - Install Tool entry point moved 

See forge#81951

Description 

The canonical entry point for accessing the install tool now is:

typo3/install.php

Impact 

Accessing typo3/install/ will still work and redirect to the new location, but has been deprecated.

Affected Installations 

Every TYPO3 installation is affected.

Migration 

Change bookmarks or scripts from the old entry point to the new one.