Doc: Remove double space

Signed-off-by: Chengwei Yang <yangchengwei@qiyi.com>
Doc: fix for metrics configuration

Signed-off-by: Chengwei Yang <yangchengwei@qiyi.com>
Added .travis.yml.
Add build status image.
Merge pull request #22 from chengweiv5/master

Doc: remove double space and fix metrics configuration
update pom.xml and MesosTracker.java for Cloudera CDH5.0.2

fix deprecated in ResourcePolicy.java
Added documentation that covers CDH5
Bumped mesos-hadoop version to 0.0.8