Bumped version and fixed PKGBUILD per https://patchwork.archlinux.org/patch/874/
Updated/fixed PKGBUILDs to work around permission denied issues caused by https://patchwork.archlinux.org/patch/874/

The correct solution is to probably split out the Python packages into python setup.py build/install steps, but unfortunately, it seems that doesn't work for Sentry due to the extra work we need to do. Hmmm. Suggestions welcome.