SAMZA-1598: Cleanup README.md file

Update old links. Remove Jenkins build badge, in favor of Travis-CI.

Author: Daniel Nishimura <[email protected]>

Reviewers: Jagdish <[email protected]>

Closes apache#434 from dnishimura/samza-1598-clean-readme

README.md

@@ -1,4 +1,4 @@
-## What is Samza?  [![Build Status](https://builds.apache.org/view/S-Z/view/Samza/job/samza-freestyle-build/badge/icon)](https://builds.apache.org/view/S-Z/view/Samza/job/samza-freestyle-build/) [![Build Status](https://travis-ci.org/apache/samza.svg?branch=master)](https://travis-ci.org/apache/samza)
+## What is Samza?  [![Build Status](https://travis-ci.org/apache/samza.svg?branch=master)](https://travis-ci.org/apache/samza)
 
 [Apache Samza](http://samza.apache.org/) is a distributed stream processing framework. It uses [Apache Kafka](http://kafka.apache.org) for messaging, and [Apache Hadoop YARN](http://hadoop.apache.org/docs/current/hadoop-yarn/hadoop-yarn-site/YARN.html) to provide fault tolerance, processor isolation, security, and resource management.
 
@@ -12,7 +12,7 @@ Samza's key features include:
 * **Pluggable:** Though Samza works out of the box with Kafka and YARN, Samza provides a pluggable API that lets you run Samza with other messaging systems and execution environments.
 * **Processor isolation:** Samza works with Apache YARN, which supports Hadoop's security model, and resource isolation through Linux CGroups.
 
-Check out [Hello Samza](https://samza.apache.org/startup/hello-samza/0.11/) to try Samza. Read the [Background](https://samza.apache.org/learn/documentation/0.8/introduction/background.html) page to learn more about Samza.
+Check out [Hello Samza](https://samza.apache.org/startup/hello-samza/latest/) to try Samza. Read the [Background](https://samza.apache.org/learn/documentation/latest/introduction/background.html) page to learn more about Samza.
 
 ### Building Samza