AMBARI-1274. Shrink top nav height. (srimanth)

git-svn-id: https://svn.apache.org/repos/asf/incubator/ambari/trunk@1439706 13f79535-47bb-0310-9956-ffa450edef68
AMBARI-1275. Incorrect displaying "Background operations" window after changing state of component. (srimanth)

git-svn-id: https://svn.apache.org/repos/asf/incubator/ambari/trunk@1439707 13f79535-47bb-0310-9956-ffa450edef68