hub4j#1965 Adding delete method

Author: sbouchexbellomie-Philips

src/main/java/org/kohsuke/github/GHDeployment.java

@@ -194,6 +194,16 @@ public String getSha() {
         return sha;
     }
 
+    /**
+     * Deletes this deployment.
+     *
+     * @throws IOException
+     *             the io exception
+     */
+    public void delete() throws IOException {
+        root().createRequest().method("DELETE").withUrlPath(owner.getApiTailUrl("deployments/" + getId())).send();
+    }
+
     /**
      * Create status gh deployment status builder.
      *