HttpModule: Adjust to changed package

The HttpModule class was moved from the api package to the root
package in change If47336c51, but the package declaration was
not adjusted.

Also, as a result of the move, classes from the api package must
now be explicitly imported.

Change-Id: Id17058b60257c49663de6c3756c48a3d28efe301
diff --git a/java/com/google/gerrit/plugins/checks/HttpModule.java b/java/com/google/gerrit/plugins/checks/HttpModule.java
index 12c0a51..ff47efb 100644
--- a/java/com/google/gerrit/plugins/checks/HttpModule.java
+++ b/java/com/google/gerrit/plugins/checks/HttpModule.java
@@ -12,11 +12,13 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
-package com.google.gerrit.plugins.checks.api;
+package com.google.gerrit.plugins.checks;
 
 import com.google.gerrit.extensions.registration.DynamicSet;
 import com.google.gerrit.extensions.webui.JavaScriptPlugin;
 import com.google.gerrit.extensions.webui.WebUiPlugin;
+import com.google.gerrit.plugins.checks.api.CheckersRestApiServlet;
+import com.google.gerrit.plugins.checks.api.PendingChecksRestApiServlet;
 import com.google.inject.servlet.ServletModule;
 
 public class HttpModule extends ServletModule {