Merge pull request #61 from openwide-java/master

Disconnect the HTTPURLConnection after use (Fixes #59).

src/main/java/org/gitlab/api/http/GitlabHTTPRequestor.java

@@ -108,7 +108,9 @@ public class GitlabHTTPRequestor {
      * @throws java.io.IOException on gitlab api error
      */
     public <T> T to(String tailAPIUrl, Class<T> type, T instance) throws IOException {
-        HttpURLConnection connection = setupConnection(root.getAPIUrl(tailAPIUrl));
+        HttpURLConnection connection = null;
+        try {
+            connection = setupConnection(root.getAPIUrl(tailAPIUrl));
 
             if (hasOutput()) {
                  submitData(connection);
@@ -125,6 +127,11 @@ public class GitlabHTTPRequestor {
             }
 
             return null;
+        } finally {
+            if (connection != null) {
+                connection.disconnect();
+            }
+        }
     }
 
     public <T> List<T> getAll(final String tailUrl, final Class<T[]> type) {