title: DROP all foreign keys in MYSQL database
body: <p>Foreign keys are causing me too many problems modifying an database structure to meet new requirements - I want to modify primary keys but it seems I can't when foreign keys reference the table in question (I think because MySQL drops the table and re-creates).</p>
  
  <p>So while I work on the DB, I'd like to simply remove all the foreign keys and re-create them later. Is there a neat way to do so?</p>