Disable sendfile for development
Disable sendfile for development

This mitigates the issue on certain VMs where files sent by the webserver are corrupted because of illegal characters and/or truncation.

OpenConext/OpenConext-deploy,OpenConext/OpenConext-deploy,OpenConext/OpenConext-deploy,OpenConext/OpenConext-deploy,baszoetekouw/OpenConext-deploy,baszoetekouw/OpenConext-deploy,baszoetekouw/OpenConext-deploy,OpenConext/OpenConext-deploy,baszoetekouw/OpenConext-deploy,baszoetekouw/OpenConext-deploy