Put install. code inside bash functions
Change log messages to better indicate the new install process
Use install.php for unattended MediaWiki install
Remove unnecessary flag (it is the default setting)
Apply custom settings

Add php variable assignments to file LocalSettings.php
Simplify Dockerfile ADD statements
Merge branch 'master' into wiki_autoinstall
Simplify Dockerfile ADD statements

Part 2
Merge branch 'master' into wiki_autoinstall
Move all wiki installation code to one file

Also, generate random wiki admin pass
Fix script name in Dockerfile
Rearrange Dockerfile statements so that CMD is at the end