Simplest example of installing Elgg plugins with composer. Just put it into your project root and run `php composer.phar install`

composer.json

{
  "type": "project",
  "repositories": [
    {
      "type": "composer",
      "url": "http://composer.i.srokap.pl"
    }
  ],
  "minimum-stability": "dev",
  "require": {
    "tidypics/tidypics": "1.8.0-rc1"
  }
}