title: upgrade magento to latest version
body: <p>I am currently using Magento community edition, version 1.7.0.0, and as recommended by Magento due to a major security loophole fix, I want to upgrade my application to use latest version, 1.7.0.2. </p>
  
  <p>What is the best way to upgrade magento version?</p>
  
  <p>I know there are ways like command-line upgrade and using Magento Connect Manager, but not sure which and how to use.</p>
  
  <p>thanks</p>