* Update install_log2ram.yml
Updated Ansible playbook to configure notification settings in Log2Ram...
The playbook incorrectly referenced 'MAIL=' - this should instead be 'NOTIFICATION='
Added support for customizable notification commands - 'NOTIFICATION_COMMAND='
* Update install_log2ram.yml
Aligned Ansible playbook settings with Log2Ram config defaults to ensure consistency and predictability.
* Update install_log2ram.yml
Added a task to install the prerequisite apt package 'gnupg'.
(GnuPG is required by the task, 'Add gpg key').