added a challenge for mercurial hooks

scm-plugins/scm-hg-plugin/src/main/java/sonia/scm/web/HgServletModule.java

@@ -38,6 +38,7 @@ package sonia.scm.web;
 import com.google.inject.servlet.ServletModule;
 
 import sonia.scm.plugin.ext.Extension;
+import sonia.scm.repository.HgHookManager;
 import sonia.scm.web.filter.BasicAuthenticationFilter;
 
 /**
@@ -63,6 +64,7 @@ public class HgServletModule extends ServletModule
   @Override
   protected void configureServlets()
   {
+    bind(HgHookManager.class);
 
     // write hook script
     filter(MAPPING_ALL).through(HgHookScriptFilter.class);