Upgraded HttpCore to version 4.4.4

git-svn-id: https://svn.apache.org/repos/asf/httpcomponents/httpclient/branches/4.5.x@1731535 13f79535-47bb-0310-9956-ffa450edef68

Author: ok2c

pom.xml

@@ -66,7 +66,7 @@
   <properties>
     <maven.compiler.source>1.6</maven.compiler.source>
     <maven.compiler.target>1.6</maven.compiler.target>
-    <httpcore.version>4.4.3</httpcore.version>
+    <httpcore.version>4.4.4</httpcore.version>
     <commons-logging.version>1.2</commons-logging.version>
     <commons-codec.version>1.9</commons-codec.version>
     <ehcache.version>2.6.9</ehcache.version>