[dev-context] core-reg.tex possible patch needed

[Duncan Hothersall]

Something I ran into in Epen which Taco helped me to fix. In 
cont-tmf.zip dated 22 March 07:

core-reg.tex line 160

    \iffourarguments

throws up an undefined keyword error. I replaced with

    \iffourthargument

and this error went away, but that may not have been the intended 
meaning. My register seemed to work okay after this fix, but in any case 
I am unsure what the new third argument to \dostartregister, "type", is 
to be used for here, so I can't test it.

Duncan