Do not hide underlying SSL message, helps with siagnosing problems, e.g. SSL...

Do not hide underlying SSL message, helps with siagnosing problems, e.g. SSL problem might not be in cert exactly, but in mismatched host-name

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

@@ -291,7 +291,7 @@ public class GitlabHTTPRequestor {
                 return null;
             }
         } catch (SSLHandshakeException e) {
-            throw new SSLHandshakeException("You can disable certificate checking by setting ignoreCertificateErrors on GitlabHTTPRequestor");
+            throw new SSLHandshakeException("You can disable certificate checking by setting ignoreCertificateErrors on GitlabHTTPRequestor. SSL Error: " + e.getMessage());
         } finally {
             IOUtils.closeQuietly(reader);
         }