Currently only Apache is supported out of the box, as i'm lacking the time and experience to test on other servers. Any configuration help for nginx, etc... will be appreciated folks!
You need to make sure to have your webserver configured for PHP 5.3.0 as minimum (5.3.8+ recommended) and the rewrite module enabled (on a typical modern apache2 installation you can do this via
sudo a2enmod rewrite).
Download the cronman repository into a directory of your choice - that said, if you don't/can't use symlinks or plan to set up an own vhost (which is strongly recommended but not necessarily needed to operate CronMan) you must of course select a directory that is accessible to apache (your "wwwroot" root folder, which will be under "/var/www" on a default *nix installation).
chmod 767 www/assets; chmod 766 www/runtime; chmod 766 www/data