[NTG-context] registers, how to ignore quote marks

[jbf]

Well done Adam - or should I say well read in the Wiki! For all my 
reading of it I still hadn't cottoned on to that. There are several of 
these cases, but I have been able to fix them all now. Thank you.

Any thoughts (but I'm pretty sure this isn't fully explained in the 
wiki) how I can get part of the index entry in italics and part normal? 
That might be a bit more difficult I think.

Julian