* Apache performance
API: Use SetEnvIf if available and fallback to RewriteRule
Docker: Disable unused modules.
Docker: Hard-include .htaccess to avoid having to scan for changes in
that file.
Docker: Disable security check of symlinks, which we do not use ayway.
* Apache readme
* Docker/Apache tuning
Run cron job with correct www-data user instead of root
Remove PHP GMP module uneeded for 64-bit Docker image
Add option to mount custom .htaccess for HTTP authentication
Re-add Apache module for HTTP authentication
Move Alpine-specific instructions to Docker file (instead of Apache
conf) to make it easier to have other base images than Alpine
Alexandre Alapetite