Ensure uid3 is lowercase in templates. Also fix some bugs related to validating UID3. If the user enters a non-0x prefixed string, this is not always detected, and a UID3 range check warning indicates a different string was parsed (dropping the first two chars as if 0x was there).

<?xml version="1.0" encoding="UTF-8"?>
<?eclipse version="3.2"?>
<plugin>
 <extension
       point="com.nokia.carbide.cdt.builder.environmentModifier">
      <modifier class="com.nokia.carbide.cdt.builder.test.TestEnvironmentModifier"/>
 </extension>

</plugin>