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• follows PSR-2 coding standards
• follows PSR-4 for autoloading.
• Configured to be installed via composer

• php 5.4+ (some of the dependencies would not install with php 5.3, but your mileage may vary)
• GPG v2 for signing
• Composer (PHP Package Manager)
  • to install (on Mac): $ curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin

• $ cd /path/to/repo
• $ composer.phar install