we only want to maintain one INSTALL.txt - and it is in the directory 'install' where it belongs.
Merge https://github.com/friendica/red into zpull
get rid of more variables with dashes in the names - use underscore *except* in CSS. These were probably already here, but if you see any - please keep them out of PHP and MySQL where they sometimes get interpreted as a subtraction operation and are a bugger to find.