Minor - Update readme.html to un-specify a strict minimum version of Firefox. Generally speaking, users should try to use the latest browser version. The oldest version, the more likely some part of Chamilo will respond... less well.

documentation/readme.html

@@ -113,9 +113,9 @@ We officially recommend Debian and Ubuntu operating systems for their security,
 <p>Chamilo includes a LDAP module that allows admin to disable database
     authentication and replace it by connecting to a LDAP directory.</p>
 
-<p>Client side, Chamilo runs on any browser : Firefox, MS Internet Explorer
+<p>Client side, Chamilo runs on any browser : Firefox, Internet Explorer
     (9+), Chrome, Safari, Opera, ...<br />
-    For better user experience, we recommend Firefox 3.5+ (you can download it
+    For better user experience, we recommend Firefox (you can download it
     freely from <a href="http://getfirefox.com">http://getfirefox.com</a>).</p>
 
 <h1>Chamilo.org</h1>