Resolve "Die Statistiken sollten auch in ElasticSearch hinterlegt werden."

Related to #384 (closed)

src/main/java/at/ac/uibk/gitsearch/config/SecurityConfiguration.java

@@ -199,7 +199,7 @@ public class SecurityConfiguration extends WebSecurityConfigurerAdapter {
             .antMatchers("/api/register").denyAll()
             .antMatchers("/api/activate").permitAll()
             .requestMatchers(forLocalNetworkAndPath("/api/gitlab/eventListener")).anonymous() // gitlab event processing requests are only accepted, if local
-            .antMatchers("/api/gitlab/eventListener").hasAuthority(AuthoritiesConstants.ADMIN) // TODO clarify access
+            .antMatchers("/api/gitlab/eventListener").hasAuthority(AuthoritiesConstants.ADMIN)
             .antMatchers("/api/account/reset-password/init").permitAll()
             .antMatchers("/api/account/reset-password/finish").permitAll()
             .antMatchers("/api/likes/numberOfLikes/**").permitAll()