compatibility with credit taxonomy

[jcolomb]

some of the terms were modified from the credit taxonomy, see #3.

For compatibility issue, I would "revert" the #name tag to the credit taxonomy term, as present on http://credit.niso.org/implementing-credit/

I do not know how to deal with capitalisation of the terms, though. It is indeed not a big deal to build compatible workflow when only the capitalisation is different.

I have indeed problems to find a way to tell my code that
Writing – review & editing == writing review and editing role

while I have not problem with
project administration role== Project administration:

grepl (Project administration,project administration role, , ignore.case = TRUE)