message: Switch badge over to Circle
diff: # Rust-Postgres
  +[![CircleCI](https://circleci.com/gh/sfackler/rust-postgres.svg?style=shield)](https://circleci.com/gh/sfackler/rust-postgres) [![Latest Version](https://img.shields.io/crates/v/postgres.svg)](https://crates.io/crates/postgres)
  +
  A native PostgreSQL driver for Rust.
  [Documentation](https://docs.rs/postgres)
  -[![Build Status](https://travis-ci.org/sfackler/rust-postgres.svg?branch=master)](https://travis-ci.org/sfackler/rust-postgres) [![Latest Version](https://img.shields.io/crates/v/postgres.svg)](https://crates.io/crates/postgres)
  -
  You can integrate Rust-Postgres into your project through the [releases on crates.io](https://crates.io/crates/postgres):
  ```toml
  [dependencies]
  