Christian Kuhn authored Feb 01, 2014 and Anja Leichsenring committed Feb 02, 2014

Integrate the definition of packages that should be activated at
first installation and packages that are required for a minimal
usable system in the package manager.

There are now three possible properties in Classes/Package.php:

* protected - Package can not be uninstalled in em.
* partOfFactoryDefault - Package is activated at first installation.
* partOfMinimalUsableSystem - Package is activated if
  PackageStates.php is missing. extensionmanager and t3skin are
  affected here, if PackageStates.php is deleted, the install tool
  will create a new one with those packages activated, so the backend
  is "usable" enough to activate further packages.

Resolves: #53988
Releases: 6.2
Change-Id: I4f5d3f0a7d3bcf332d1e8e6c29156f93bae8029c
Reviewed-on: https://review.typo3.org/27226
Reviewed-by: Christian Kuhn
Tested-by: Christian Kuhn
Reviewed-by: Stefan Neufeind
Tested-by: Stefan Neufeind
Reviewed-by: Thomas Maroschik
Tested-by: Thomas Maroschik
Reviewed-by: Anja Leichsenring
Tested-by: Anja Leichsenring