Update toluene.def

[remseven]

Hi there, It seems some things have to be corrected so the toluene.def could be understood when called with the CastilloVlugtCalero2009 as expected by default:

• the header
• the atoms label to match CastilloVlugtCalero2009/force_field_mixing_rules.def file Cheers, Rémi

[patrickfuller]

Thanks!

I'll merge, but you should also forward this pull request to David Dubbeldam. He keeps the official git repo on his own server.

[remseven]

I would be happy to do so if I knew where to contact him or what the web direction of the official git repository. Or do you think I should contact him directly by email?

[patrickfuller]

I'd email him.