Update Commons-Httpclient Dep, Misc Cleanup

Change-Id: Iaab8930ddf69a3202a6e7efff3533bfec8cff6c5
Reviewed-on: https://asterix-gerrit.ics.uci.edu/1053
Sonar-Qube: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Tested-by: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Integration-Tests: Jenkins <jenkins@fulliautomatix.ics.uci.edu>
Reviewed-by: Till Westmann <tillw@apache.org>
diff --git a/hyracks-fullstack/hyracks/hyracks-api/pom.xml b/hyracks-fullstack/hyracks/hyracks-api/pom.xml
index 5f625fb..acb0f1d 100644
--- a/hyracks-fullstack/hyracks/hyracks-api/pom.xml
+++ b/hyracks-fullstack/hyracks/hyracks-api/pom.xml
@@ -67,7 +67,7 @@
     <dependency>
       <groupId>org.apache.httpcomponents</groupId>
       <artifactId>httpclient</artifactId>
-      <version>4.3</version>
+      <version>4.5.2</version>
       <type>jar</type>
       <scope>compile</scope>
     </dependency>