Now using copy instead of template for mail config.

tasks/main.yml:
- Use copy action for setting up mail alerts if the var
monit_mail_enabled is true. Copies the file "files/mail".

files/mail:
- Example mail config file, all commented out.

templates/mail.j2:
Removed it since it is no longer used.
Mail config file renamed to monit_mail.
Merge branch 'apache' into mail
Added memcached support.