Account importer uses new REST API account id

Gerrit 2.11/master REST API returns account id
as Integer instead of Account.Id object: we do
need to adapt our in-memory call.

Change-Id: I4e2c0ecf4d5c12e9dab7fb80d81dadf1df8c2865

github-plugin/src/main/java/com/google/gerrit/server/account/AccountImporter.java

diff --git a/github-plugin/src/main/java/com/google/gerrit/server/account/AccountImporter.java b/github-plugin/src/main/java/com/google/gerrit/server/account/AccountImporter.java
index 44322e5..88ced25 100644
--- a/github-plugin/src/main/java/com/google/gerrit/server/account/AccountImporter.java
+++ b/github-plugin/src/main/java/com/google/gerrit/server/account/AccountImporter.java
@@ -19,6 +19,7 @@
 import org.apache.http.HttpStatus;
 
 import com.google.common.base.Objects;
+import com.google.gerrit.extensions.common.AccountInfo;
 import com.google.gerrit.extensions.restapi.BadRequestException;
 import com.google.gerrit.extensions.restapi.ResourceConflictException;
 import com.google.gerrit.extensions.restapi.Response;
@@ -57,7 +58,7 @@
         (Response<AccountInfo>) createAccount.apply(TopLevelResource.INSTANCE,
             accountInput);
     if (accountResponse.statusCode() == HttpStatus.SC_CREATED) {
-      Id accountId = accountResponse.value()._id;
+      Id accountId = new Account.Id(accountResponse.value()._accountId);
       db.accountExternalIds().insert(
           Arrays
               .asList(new AccountExternalId(accountId,