Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable

Revert "Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable"

This reverts commit 480eb82c.

Issue #2156401 by alexpott, moshe weitzman, tedbow, dawehner, greg.1.anderson, phenaproxima, chris.smith, heddn, balsama, xjm, Mile23, izus, Manuel Garcia, sun, pwolanin, Berdir: Write install_profile value to configuration and only to settings.php if it is writeable

Issue #2301313 by pwolanin, dawehner, Wim Leers, effulgentsia, kgoel, YesCT, glide: MenuLinkNG part3 (no conversions): MenuLinkContent UI.

Issue #1067408 by alexpott, Jalandhar, jessebeach, Désiré, neetu morwani, dawehner, sun: Themes do not have an installation status.

Issue #2233787 by alexpott, xjm | tim.plunkett: Move default configuration into extension/config/install to clarify its purpose.