Add org public-members call, to complement the full members list

http://developer.github.com/v3/orgs/members/#public-members-list

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

@@ -81,22 +81,37 @@ public void publicize(GHUser u) throws IOException {
  * All the members of this organization.
  */
  public PagedIterable<GHUser> getMembers() throws IOException {
- return getMembersWithFilter(null);
+ return getMembers("members");
  }
 
- public PagedIterable<GHUser> getMembersWithFilter(final String filter) throws IOException {
+ /**
+ * All the public members of this organization.
+ */
+ public PagedIterable<GHUser> getPublicMembers() throws IOException {
+ return getMembers("public_members");
+ }
+
+ private PagedIterable<GHUser> getMembers(String suffix) throws IOException {
+ return getMembers(suffix, null);
+ }
+
+ public PagedIterable<GHUser> getMembersWithFilter(String filter) throws IOException {
+ return getMembers("members", filter);
+ }
 
+ private PagedIterable<GHUser> getMembers(final String suffix, final String filter) throws IOException {
  return new PagedIterable<GHUser>() {
  public PagedIterator<GHUser> iterator() {
  String filterParams = (filter == null) ? "" : ("?filter=" + filter);
- return new PagedIterator<GHUser>(root.retrieve().asIterator(String.format("/orgs/%s/members%s", login, filterParams), GHUser[].class)) {
+ return new PagedIterator<GHUser>(root.retrieve().asIterator(String.format("/orgs/%s/%s%s", login, suffix, filterParams), GHUser[].class)) {
  @Override
  protected void wrapUp(GHUser[] page) {
  }
  };
  }
  };
  }
+
  /**
  * Conceals the membership.
  */