[aur-general] Merge requests

[Sébastien Leduc]

Hello,

Could you please merge:
python2-pipeline [1] into python2-grapevine [2]
and
python-pipeline [3] into python-grapevine [4] ?

The project changed its name upstream so 'grapevine' replaces 'pipeline'.

Thanks.

1: https://aur.archlinux.org/packages/python2-pipeline/
2: https://aur.archlinux.org/packages/python2-grapevine/

3: https://aur.archlinux.org/packages/python-pipeline/
4: https://aur.archlinux.org/packages/python-grapevine/