TYPO3 Core

The autoload information seems to be updated to late during the extension installation process.
This results in that the system cannot find classes.

Validate:

- check autoload_classmap to not contain bootstrap_package entries
- check autoload_psr4 to not contain bootstrap_package entries
- git clone git@github.com:benjaminkott/bootstrap_package.git typo3conf/ext/bootstrap_package
- go to the extension manager
- install bootstrap_package

the system is broken now

- bin/typo3 dumpautoload

system is fixed