Added order parameter

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

@@ -41,6 +41,11 @@ public class GHIssueSearchBuilder extends GHSearchBuilder<GHIssue> {
         return q("is:merged");
     }
 
+    public GHIssueSearchBuilder order(GHDirection v) {
+        req.with("order",v);
+        return this;
+    }
+
     public GHIssueSearchBuilder sort(Sort sort) {
         req.with("sort",sort);
         return this;

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

@@ -57,6 +57,11 @@ public class GHRepositorySearchBuilder extends GHSearchBuilder<GHRepository> {
         return q("stars:"+v);
     }
 
+    public GHRepositorySearchBuilder order(GHDirection v) {
+        req.with("order",v);
+        return this;
+    }
+
     public GHRepositorySearchBuilder sort(Sort sort) {
         req.with("sort",sort);
         return this;

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

@@ -49,6 +49,11 @@ public class GHUserSearchBuilder extends GHSearchBuilder<GHUser> {
         return q("followers:"+v);
     }
 
+    public GHUserSearchBuilder order(GHDirection v) {
+        req.with("order",v);
+        return this;
+    }
+
     public GHUserSearchBuilder sort(Sort sort) {
         req.with("sort",sort);
         return this;