Ansible/Warden-Filer-Receiver: fix installation
Repository path for both Ansible roles is now CESNET of Gitlab.
For Ansible/Warden-Filer-Receiver, there are more fixes. The main task file now:
- creates the bin directory (default /opt/warden-filer)
- creates the needed /run and /var/lib directories
- copies files properly after fetching from Git
- applies executable permission to the init.d script
- creates main binary symlink at /usr/local/bin/warden_filer.py
- creates /etc/default/warden_filer_receiver file in the correct path