Make getTeambySlug fast enought

src/main/java/org/kohsuke/github/GHOrganization.java

@@ -128,6 +128,24 @@ public class GHOrganization extends GHPerson {
                 .toIterable(GHTeam[].class, item -> item.wrapUp(this));
     }
 
+    /**
+     * Gets a single team by ID.
+     *
+     * @param id
+     *            the id
+     * @return the team
+     * @throws IOException
+     *             the io exception
+     *
+     *  @see <a href=
+     *      "https://developer.github.com/v3/teams/#get-team-by-name">documentation</a>
+     */
+    public GHTeam getTeam(int id) throws IOException {
+        return root.createRequest()
+                .withUrlPath(String.format("/orgs/%s/teams/%d", login, id))
+                .fetch(GHTeam.class).wrapUp(this);
+    }
+
     /**
      * Finds a team that has the given name in its {@link GHTeam#getName()}
      *
@@ -147,19 +165,19 @@ public class GHOrganization extends GHPerson {
 
     /**
      * Finds a team that has the given slug in its {@link GHTeam#getSlug()}
-     *
+     * 
      * @param slug
      *            the slug
      * @return the team by slug
      * @throws IOException
      *             the io exception
+     *  @see <a href=
+     *      "https://developer.github.com/v3/teams/#get-team-by-name">documentation</a>
      */
     public GHTeam getTeamBySlug(String slug) throws IOException {
-        for (GHTeam t : listTeams()) {
-            if (t.getSlug().equals(slug))
-                return t;
-        }
-        return null;
+        return root.createRequest()
+                .withUrlPath(String.format("/orgs/%s/teams/%s", login, slug))
+                .fetch(GHTeam.class).wrapUp(this);
     }
 
     /**

src/main/java/org/kohsuke/github/GitHub.java

@@ -724,7 +724,10 @@ public class GitHub {
      * @return the team
      * @throws IOException
      *             the io exception
+     *             
+     * @deprecated Use {@link GHOrganization#getTeam(int)}
      */
+    @Deprecated
     public GHTeam getTeam(int id) throws IOException {
         return createRequest().withUrlPath("/teams/" + id).fetch(GHTeam.class).wrapUp(this);
     }