Add circle ci and coverall settings

README.md

@@ -1,6 +1,10 @@
+# wvlet-log  [![Gitter Chat][gitter-badge]][gitter-link] [![CircleCI](https://circleci.com/gh/wvlet/log.svg?style=svg)](https://circleci.com/gh/wvlet/log) [![Coverage Status][coverall-badge]][coverall-link]
+
+[gitter-badge]: https://badges.gitter.im/Join%20Chat.svg
+[gitter-link]: https://gitter.im/wvlet/log?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge
+[coverall-badge]: https://coveralls.io/repos/github/wvlet/log/badge.svg?branch=master
+[coverall-link]: https://coveralls.io/github/wvlet/log?branch=master
 
-wvlet-log
-===
 
 wvlet-log is a library for adding fancy logging to your Scala application:
 

circle.yml

@@ -0,0 +1,19 @@
+machine:
+  timezone: UTC
+  java:
+    version: oraclejdk8
+
+dependencies:
+  cache_directories:
+    - "~/.sbt"
+    - "~/.ivy2"
+  pre:
+    - ./sbt sbt-version
+  override:
+    - ./sbt compile
+
+test:
+  override:
+    - ./sbt coverage test coverageReport && ./sbt coverageAggregate
+  post:
+    - ./sbt coveralls