title: Create CakePHP custom configuration
body: <p>I am trying to store configuration settings for my app. The details to be stored should be available throughout the app and it should be possible to update them. Examples of the details include the link for the logo image and contact details.</p>
  
  <p>I did start this by storing the details in the database, creating a model and controller. However, as the logo is on every page, this requires querying the database on every page load.</p>
  
  <p>I have read about the Configure class, but I can't get it too work. Can anyone explain how I could use Configure to store these configuration variables in a file, read them and update them in the file. I have looked at the cook book and the API, but it is not very clear.</p>