Reapply changes from pull request 180

Reapplying changes from 
https://github.com/apache/drat/pull/180
after merge errors.
diff --git a/pom.xml b/pom.xml
index fc4dfbf..fcc44d6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -20,7 +20,7 @@
     <repository>
       <id>maven2</id>
       <name>Java Sun Maven2 Repository</name>
-      <url>http://download.java.net/maven/2</url>
+      <url>https://download.java.net/maven/2</url>
       <layout>default</layout>
     </repository>
     <repository>