FormPreferences patch

[Angus Leeming]

My last patch appears to have got lost but no worries. It's superceeded by 
this one.

FormPreferences is now much more user-friendly as it has Feedback and Warning 
messages. It's also more coder-friendly as it's now modular. Modules are 
based on tabs, so it's easy to folllow the flow of the code and it's easy to 
add new functionality.

Angus

patch27Oct2000.bz2