Runtime Requirements:
PHP >= 5.3.0 compiled with GD and Freetype
Write permissions for PHP to the cache/ and templates_c directories

Documentation Requirements:
Doxygen >= 1.7.5

Automated Testing Requirements:
Python
Chromium
Selenium Python Client Driver

To install:
Run cache.php from the command line or a web browser. It is recommended that this be run every 15 minutes, or at some other regular interval