Use semaphore for CI.

README.md

@@ -7,7 +7,7 @@ It provides a python library for interacting with etcd, with convenience
 functions for retrieving the higher-level data structures (such as containers
 and labels) that the reporter service creates.
 
-## Tests [![CircleCI](https://circleci.com/gh/csmith/docker-service-reporter-lib.svg?style=svg)](https://circleci.com/gh/csmith/docker-service-reporter-lib)
+## Tests [![Build Status](https://semaphoreci.com/api/v1/csmith/docker-service-reporter-lib/branches/master/badge.svg)](https://semaphoreci.com/csmith/docker-service-reporter-lib) 
 
 A separate Dockerfile for tests is located in the tests directory. It depends
 on a 'dev' label of csmith/service-reporter-lib. There's a docker compose file

circle.yml

@@ -1,17 +0,0 @@
----
-machine:
-  services:
-    - docker
-
-dependencies:
-  pre:
-    - sudo pip install docker-compose
-  override:
-    - docker-compose build:
-        pwd: test
-
-test:
-  override:
-    - docker-compose run tests:
-        pwd: test
-