title: How to reset Liferay? (delete all content/users/customizations)
body: <p>I totally messed up my development Liferay (trial-and-error experiments lead to many wrong identifiers being written in many wrong MySQL rows/columns).</p>
  
  <p>How to reset it, so that I get a fresh clean Liferay?</p>
  
  <p>I want to get back to the situation where you have just installed Liferay, and there are no users, no customizations, no pages, no content.</p>
  
  <p>I should take less time than reinstalling all of Liferay (Java, database, etc).</p>