Introduce namespaces with custom class loader.
Extract download functionality.
Fix missing global namespace prefix.
Extract convenience method Runtime::updateComposer().
Extract convenience method Runtime::increaseMemoryLimit().
Extract convenience method Runtime::readComposerDevWarningTime().
Extract convenience method Runtime::clearComposerCache().
Extract convenience method Runtime::isSafeModeHackEnabled().
Extract convenience method Runtime::isPhpVersionSupported().
Extract convenience method Runtime::isCurlEnabled().
Extract convenience method Runtime::isAllowUrlFopenEnabled().
Extract convenience method Runtime::checkEnvironment().
Extract convenience method Runtime::isApcEnabled().
Try to disable APC in Runtime::checkEnvironment().
Use static:: instead of Runtime:: where possible.
Extract convenience method Runtime::registerComposerClassLoader().
Extract convenience method Runtime::registerVendorClassLoader().
Remove check if composer.phar exists.
Extract convenience method Runtime::createComposer().
Extract convenience method Runtime::updateContaoVersion().