EDT-789: Fix a bug introduced by 38af8897e267b9207b42b905b800905e7cb3d812 on 22/04/2014 while adding namespace and revision strings to the other_details archetype attribute. For no apparent reason, the initialisation of the terminology grid of the Text constraint control was commented out, causing it to become completely non-functional and to throw exceptions. This change has now been reverted.
EDT-789: Fix a bug introduced by 38af8897e267b9207b42b905b800905e7cb3d812 on 22/04/2014 while adding namespace and revision strings to the other_details archetype attribute. On the Description page's Authorship sub-tab, the double-click event handler of the Contributors list box was removed for no apparent reason. This change has now been reverted.

This also cleans up a few other problems in the code:
* In the terminology.xml file, new entries were added but without their PrimaryRubric. This is now fixed.
* Various pointless empty event handlers were added. These are now removed.