Make fetch script names clearer

[strugee]

Ref #369

[tobie]

Thanks for your contribution!

Specref loosely follows the process described in The Pull Request Hack. You've thus been granted commit access to the repo.

Please read-up on how to make manual changes, get non-trivial changes reviewed by someone (I'm sure you'll be a good judge of when that's necessary) and feel free to ask if something's unclear.

Thanks again!