ready for travis-ci

.travis.yml

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+language: java
+jdk:
+    - oraclejdk7

README.md

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 Plugin Framework for Java (PF4J)
 =====================
+
+[![Travis CI Build Status](https://travis-ci.org/decebals/pf4j.png)](https://travis-ci.org/decebals/pf4j)
+[![Maven Central](http://img.shields.io/maven-central/v/ro.fortsoft.pf4j/pf4j.svg)](http://search.maven.org/#search|ga|1|pf4j)
+
 A plugin is a way for a third party to extend the functionality of an application. A plugin implements extension points
 declared by application or other plugins. Also a plugin can define extension points.  
 
 **NOTE:** Starting with version 0.9 you can define an extension directly in the application jar (you're not obligated to put the extension in a plugin - you can see this extension as a default/system extension). See [WhazzupGreeting](https://github.com/decebals/pf4j/blob/master/demo/app/src/main/java/ro/fortsoft/pf4j/demo/WhazzupGreeting.java) for a real example.  
 
-Current build status:  [![Build Status](https://buildhive.cloudbees.com/job/decebals/job/pf4j/badge/icon)](https://buildhive.cloudbees.com/job/decebals/job/pf4j/)
-
 Features/Benefits
 -------------------
 With PF4J you can easily transform a monolithic java application in a modular application.