Add a "Makefile" template

[allebb]

The Makefile template will provide some boiler plate for projects so that users can document the installation process using a Makefile wrapper.

The Makefile template should contain the following boilerplate:

1. install - Checks to see if Composer is available (if not download it), run composer install.
2. clean - Delete the '/vendor' directory.
3. update - Does a git reset --hard and a git pull.
4. uninstall - Deletes the current (app) directory and placeholders for allowing the user to delete system services/log files etc.
5. test - Runs PHPUnit on the application directory (calls /vendor/bin/phpunit)