[Rivet] Rivet for powheg-pythia8 studies

[David Grellscheid]

Hi Liron,

>> 1. Should I do:
>> source rivetenv.sh
>> source agileenv.sh
>> If I use z shell?

In my usage, riventenv.sh works fine with zsh. The variable assignment 
syntax is the same.

>> 3. Do you have any Command completion for z shell? I just ignored it for
>> now...

You can make the bash completions work for zsh:

http://stackoverflow.com/questions/3249432/i-have-a-bash-tab-completion-script-is-there-a-simple-way-to-use-it-from-zsh

   David