Cabal revisions of beam-postgres-0.3.1.0

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

 name:                 beam-postgres version:              0.3.1.0+x-revision: 1 synopsis:             Connection layer between beam and postgres description:          Beam driver for <https://www.postgresql.org/ PostgreSQL>, an advanced open-source RDBMS homepage:             http://tathougies.github.io/beam/user-guide/backends/beam-postgres                       Database.Beam.Postgres.PgSpecific                       Database.Beam.Postgres.Extensions   build-depends:      base                 >=4.7  && <5.0,-                      beam-core            >=0.7  && <0.8,+                      beam-core            >=0.7  && <0.7.2,                       beam-migrate         >=0.3  && <0.4,                        postgresql-libpq     >=0.8  && <0.10,