Import postgresql-git from AUR to priv/
Move priv/postgresql-git to priv/priv-postgresql
Modify pkgname from postgresql-git to priv-postgresql
Modify pkgver from 20130918 to 9.3.1 and checkout REL9_3_1 tag
Add -march=native to CFLAGS of priv-postgresql
Modify Maintainer/Contributor lines of priv-postgresql