Github API links fixes

extensions/github-update/class-fw-extension-github-update.php

@@ -67,7 +67,9 @@ private function fetch_latest_version($user_slash_repo)
 
 		$http = new WP_Http();
 
-		$response = $http->get('/repos/'. $user_slash_repo .'/releases');
+		$response = $http->get(
+			$this->get_github_api_url('/repos/'. $user_slash_repo .'/releases')
+		);
 
 		unset($http);
 
@@ -285,9 +287,12 @@ private function download($user_slash_repo, $version, $wp_filesystem_download_di
 
 		$http = new WP_Http();
 
-		$response = $http->request($release['zipball_url'], array(
-			'timeout' => $this->download_timeout,
-		));
+		$response = $http->request(
+			'https://github.com/'. $user_slash_repo .'/archive/'. $release['tag_name'] .'.zip',
+			array(
+				'timeout' => $this->download_timeout,
+			)
+		);
 
 		unset($http);