[tentacles] Factoring Out Nested Classes?

[Robert Burrell Donkin]

Tentacles uses a lot of nested classes. I tend to prefer to keep one 
class per file where possible (makes merging changes easier, for 
example) but I wanted to check whether there were any objections to me 
factoring out these classes - or whether anyone knows a reason why this 
might be a bad idea...?

Robert