title: Robot Framework - Comparing 2 string with version information (x.x.x.x)
body: <p>I'm making test scenario for a project and facing one problem, please help if you have time.</p>
  <p>I have 2 string now:</p>
  <blockquote>
  <p>${cr_ver} = 4.5.5</p>
  <p>${tobe_upgr_ver} = 7.0.0</p>
  </blockquote>
  <p>Now I want to compare them, to make like: if ${cr_ver} &lt; ${tobe_upgr_ver}, then test stop.</p>
  <p>Please kindly support. :)</p>
  <p>Much thanks.</p>