Sample mp4 added

Author: echistyakov

cielo24_gem/test/configuration.rb

@@ -13,6 +13,6 @@ def initialize
     @password = 'api_test'
     @new_password = 'api_test_new'
     @sample_video_url = 'http://techslides.com/demos/sample-videos/small.mp4'
-    @sample_video_file_path = '../../../testing/sample_video.mp4'
+    @sample_video_file_path = './sample_video.mp4'
   end
 end