Release of Gambas 1.9.48

Why not make a release April, 1st? The main changes are:
<ul>
  <li>Forms can be locked.
  <li>Syntax highlighting of CSS files.
  <li>And many bug fixes in the development environment.
  <li>Support for localization-aware string comparisons.
  <li>The behaviour of Split() and Join() has changed.
  <li>WAIT has been fixed for application without GUI.
  <li>Many enhancements in the <tt>gb.report</tt> component.
</ul>
See the <a href="changelog2.html">ChangeLog</a> for the many other changes and bug fixes.