fixed documented return type

Author: JanMalte

lib/Redmine/Api/Project.php

@@ -49,7 +49,7 @@ public function listing($forceUpdate = false, $reverse = true)
     /**
      * Get a project id given its name
      * @param  string $name
-     * @return int
+     * @return integer|boolean
      */
     public function getIdByName($name)
     {

lib/Redmine/Api/User.php

@@ -60,7 +60,7 @@ public function getCurrentUser()
     /**
      * Get a user id given its username
      * @param  string $username
-     * @return int
+     * @return integer|boolean
      */
     public function getIdByUsername($username)
     {

lib/Redmine/Client.php

@@ -159,9 +159,13 @@ public function get($path)
     }
 
     /**
-     * Decodes json response
+     * Decodes json response.
+     * 
+     * Returns $json if no error occured during decoding but decoded value is
+     * null.
+     * 
      * @param  string $json
-     * @return array
+     * @return array|string
      */
     public function decode($json)
     {
@@ -312,11 +316,13 @@ public function getImpersonateUser()
     }
 
     /**
-     * @param  string                        $path
-     * @param  string                        $method
-     * @param  string                        $data
-     * @return false|SimpleXMLElement|string
-     * @throws \Exception                    If anything goes wrong on curl request
+     * @param  string $path
+     * @param  string $method
+     * @param  string $data
+     *
+     * @return boolean|SimpleXMLElement|string
+     *
+     * @throws \Exception If anything goes wrong on curl request
      */
     protected function runRequest($path, $method = 'GET', $data = '')
     {