gplcart is great way to test different themes and present your sites to clients. When you don't need demo anymore you can easily delete all the created data with only one click! That's why i decided to help and translate this project to polish
Check out gplcart on github: https://github.com/gplcart/gplcart
Here is a proof of my contribution: https://crowdin.com/project/gplcart/activity_stream
Posted on Utopian.io - Rewarding Open Source Contributors