Minor update to L3DT 2.3b Pro Beta

Only few minor changes in this update:

• The maximum RAM-only texture size is increased to 32k×32k pixels.
• There is some extra debugging output from the activation-code module.

This update only applies to the Professional Edition, which is now at version 2.3b rev 21 (13-Dec-05). The Standard Edition is unchanged on version 2.3b rev 17 (08-Nov-05).