Bolt\Controller\Backend\Extend::installInfo PHP Method

    public function installInfo(Request $request)
    {
        $package = $request->get('package');
        $versions = ['dev' => [], 'stable' => []];
        try {
            $info = $this->app['extend.info']->info($package, Bolt\Version::forComposer());
        } catch (\Exception $e) {
            return $this->getJsonException($e);
        }
        if (isset($info->version) && is_array($info->version)) {
            foreach ($info->version as $version) {
                $versions[$version->stability][] = $version;
            }
        }
        return $this->json($versions);
    }