More localizations

<b>In this pull request I have:</b>
<ul>
  <li>Added in the following localizations: <ul>
    <li>common.cancel</li>
    <li>common.submit</li>
    <li>common.clear</li>
    <li>common.copy</li>
  </ul></li>
  <li>I have fixed a spelling, StyleSheet was spelt StyleSheetF</li>
  <li>Changed Linux to use the correct? folder <code>return new File(System.getProperty("user.dir"), "ATLauncher");</code> instead of <code>return new File(System.getProperty("user.dir"));</code></li>
</ul>